Hypothermia is commonly defined as a core temperature that’s less than 95 degrees F (35 degrees C). 1 In emergency medicine, there are two general types of hypothermia: therapeutic hypothermia ...Hypothermia is caused by prolonged exposures to very cold temperatures. When exposed to cold temperatures, your body begins to lose heat faster than it’s produced. Lengthy exposures will eventually use up your body’s stored energy, which leads to lower body temperature. Body temperature that is too low affects the brain, making the victim ...Apr 7, 2021 · Hypothermia is defined as a core body temperature found to be below 35 degrees Celsius (C). [1] Patients at high risk of cold exposure includes individuals with various behavioral response conditions such as dementia, alcohol or sedative intoxication, encephalopathy, undomiciled, immobility such as neonates or neuromuscular compromise. [2] Hypothermia, which causes about 600 deaths each year in the United States, is widely underreported and is most often accidental but rarely homicidal or suicidal. Hypothermia also increases the risk of death in people with heart, blood vessel, and nerve disorders. Hypothermia results when the body loses more heat than can be replaced by ... hypothermia翻译：（因持续寒冷而）体温过低。了解更多。 Generally, hypothermia is associated with freezing temperatures. However, hypothermia can occur in mildly cool temperatures if an individual is wet or exposed to the elements. Some individuals are more susceptible to hypothermia, such as the elderly, those under the influence of drugs or alcohol, and infants sleeping in cold areas.Mild hypothermia means your body temperature is between 95 F and 89.6 F (35 C and 32 C). Signs of mild hypothermia include: Shivering and chattering teeth. Exhaustion. Clumsiness, slow movements and reactions. Sleepiness. Weak pulse. Fast heart rate ( tachycardia ). Rapid breathing ( tachypnea ).Learn about symptoms, treatment and prevention of hypothermia — a life-threatening condition in which the body loses heat faster than it can generate it. This content does not have an English version.Dec 15, 2004 · The clinical presentation of hypothermia includes a spectrum of symptoms and is grouped into the following three categories: mild, moderate, and severe. Management depends on the degree of ... What is hypothermia? Hypothermia is caused by prolonged exposures to very cold temperatures. When exposed to cold temperatures, your body begins to lose heat faster than it’s produced. Lengthy exposures will eventually use up your body’s stored energy, which leads to lower body temperature. Oct 1, 2021 · clinical consequences of hypothermia . The table above summarizes the clinical effects of different levels of hypothermia. This isn't 100% accurate, but may provide a general idea of whether the patient's condition can be explained by the degree of hypothermia, or whether something else is going on. For example, mild hypothermia cannot explain ... Hyperthermia is a type of treatment in which body tissue is heated to as high as 113 °F to help damage and kill cancer cells with little or no harm to normal tissue. Hyperthermia to treat cancer is also called thermal therapy, thermal ablation, or thermotherapy. Different types of techniques may be used to create heat for hyperthermia treatment.Hypothermia is defined as a body temperature (core, or internal body temperature) of less than about 95 F (35 C). Usually, hypothermia occurs when the body's temperature regulation is overwhelmed by a cold environment. However, in the medical and lay literature, there are essentially two major classifications, accidental hypothermia, and ...Rapid, shallow breathing and problems with low oxygen and high carbon dioxide. Rapid heart rate. Irregular heart rhythm. Dangerously high body temperature. Excessive sweating. Patchy, irregular skin color (mottled skin) In rare cases, people at risk of malignant hyperthermia have shown signs of a reaction after intense physical activity during ...Hypothermia is caused by prolonged exposures to very cold temperatures. When exposed to cold temperatures, your body begins to lose heat faster than it’s produced. Lengthy exposures will eventually use up your body’s stored energy, which leads to lower body temperature. Body temperature that is too low affects the brain, making the victim ...hypothermia, abnormally low body temperature in a warm-blooded creature, associated with a general slowing of physiologic activity. Hibernating animals allow their body temperatures to fall to levels only slightly above ambient temperature, in a unique kind of hypothermia from which they can recover rapidly when necessary; similar temperatures would be fatal to nonhibernators.Depending on the conditions, hypothermia can occur within minutes to hours, or slowly over days to weeks. In the air, hypothermia can develop in as little as five minutes in temperatures of minus -50°F/-45.5°C in people who are not dressed properly and have exposed skin. At -30°F/-34.4°C, hypothermia can occur in about 10 minutes.Hypothermia is a life-threatening condition that occurs either due to prolonged exposure to cold conditions, as a result of underlying illness or injury, or from anesthetic procedures and certain drugs that affect a dog’s ability to maintain core body temperature. When hypothermia occurs from a cold environment, it is called primary ...Hypothermia is a core body temperature < 35° C. Symptoms progress from shivering and lethargy to confusion, coma, and death. Mild hypothermia requires a warm environment and insulating blankets (passive rewarming). Severe hypothermia requires active rewarming of the body surface (eg, with forced-air warming systems, radiant sources) and core ... Hypothermia is dangerously low body temperature, below 95°F (35°C). Take the following steps if you think someone has hypothermia: If the person has any symptoms of hypothermia that are present, especially confusion or problems thinking, call 911 right away.Early warning signs of hypothermia include: Feeling cold. Shivering. The "Umbles:" stumbles, bumbles, grumbles, and mumbles. These are signs that cold is affecting your body and brain. To prevent more serious problems, take action as soon as you notice early signs of frostbite or hypothermia. Get out of the cold, wind, rain, or snow if possible.Dec 8, 2022 · Hypothermia is caused by exposure to extremely cold temperatures. Risk factors for hypothermia include cold exposure and/or certain medical conditions. Symptoms of hypothermia include shivering; increased heart rate, breathing rate, and blood pressure; apathy, confusion, slurred speech, no reflexes, and dilated pupils. Circulation problems. Dehydration, as well as not eating enough and drinking alcohol. Vitamin deficiency, typically iron levels and vitamin B12. Sepsis (a type of bodywide infection) COVID-19 infection. Temperatures nearing or dipping below 95 degrees can indicate that hypothermia is developing or has set in.A. Hypothermia is a condition in which an organism's temperature drops below that required for normal metabolism and function. For people in stage 1 hypethermia, body temperature drops by 1-2°C below normal temperature (35-36°C). Mild to strong shivering occurs. This is one of the most serious stages of hyperthermia. Heat exhaustion occurs when your body can’t cool itself any more. In addition to sweating profusely, you may experience: dizziness ...Hypothermia is a fairly common condition for mountain travelers. Mild hypothermia is a discomfort, but it’s dangerous in that it can progress rapidly. Left untreated, it can be lead to shock and it can be fatal. It’s important to know how to prevent hypothermia, how to identify if someone is hypothermic, and how to treat that person. Jan 31, 2023 · Left in the cold for too long, dogs can develop hypothermia, a dangerous condition that occurs when the core body temperature drops too low.For dogs, mild hypothermia begins to set in when their ... Lethargy (weakness and sleepiness), cardiac arrest, shock, and coma can set in without prompt treatment. Hypothermia can be fatal. First Aid. Take the following steps if you think someone has hypothermia: If the person has any symptoms of hypothermia that are present, especially confusion or problems thinking, call 911 right away.Hypothermia is defined as a body temperature (core, or internal body temperature) of less than about 95 F (35 C). Usually, hypothermia occurs when the body's temperature regulation is overwhelmed by a cold environment. However, in the medical and lay literature, there are essentially two major classifications, accidental hypothermia, and ...Dec 7, 2022 · What is hypothermia? Hypothermia is a medical condition. It occurs when you are exposed to bitter cold for a long time. Normal body temperature is 98.6°F. You have hypothermia if your body temperature drops below 95°F. Hypothermia also can occur in temperatures that are not bitterly cold, like those above 40°F. hypothermia翻译：（因持续寒冷而）体温过低。了解更多。 Jun 17, 2021 · Hyperthermia is a type of treatment in which body tissue is heated to as high as 113 °F to help damage and kill cancer cells with little or no harm to normal tissue. Hyperthermia to treat cancer is also called thermal therapy, thermal ablation, or thermotherapy. Different types of techniques may be used to create heat for hyperthermia treatment. Gejala Hipotermia. Gejala hipotermia bervariasi, mulai dari ringan hingga berat. Berikut ini merupakan gejala hipotermia berdasarkan derajatnya: 1. Gejala hipotermia ringan (suhu 32–35 o C): 2. Gejala hipotermia sedang (suhu 28–32 o C): 3. Gejala hipotermia berat (suhu 28 o C atau lebih rendah):Hypothermia occurs when your body loses heat faster than it can produce heat and your body temperature falls below 95 F (35 C). Left untreated, it can be life-threatening. Hypothermia is often caused by exposure to cold weather or immersion in a cold body of water. It can also be caused by ongoing exposure to indoor temperatures below 50 F (10 C).Hypothermia is defined as a drop in body temperature below 35 °C. Acute causes of hypothermia include accidental hypothermia due to exposure to cold weather or cold water immersion. Other causes of hypothermia can be metabolic, drugs, sepsis, and lesions in the posterior part of the hypothalamus. In our case, the physiopathology of hypothermia ...Apr 27, 2022 · Frostbite is an injury caused by freezing of the skin and underlying tissues. In the earliest stage of frostbite, known as frostnip, there is no permanent damage to skin. Symptoms include cold skin and a prickling feeling, followed by numbness and inflamed or discolored skin. As frostbite worsens, skin may become hard or waxy-looking. Learn about symptoms, treatment and prevention of hypothermia — a life-threatening condition in which the body loses heat faster than it can generate it. This content does not have an English version.Hypothermia is what happens when your body temperature gets very low. For an older person, a body temperature of 95°F or lower can cause many health problems, such as a heart attack, kidney problems, liver damage, or worse. Being outside in the cold, or even being in a very cold house, can lead to hypothermia. Try to stay away from cold places ...Hypothermia. Dr. Friederike (Fredi) Froke, D.O. is a PGY-1 in Emergency Medicine at Mayo Clinic EM residency program. Diagnosis and management of hypothermia remains a priority concern by emergency medicine providers when caring for patients with cold exposure. Hypothermia is defined as a core body temperature found to be below 35 degrees ...Jan 30, 2009 · Hypothermia in Cats. Hypothermia is a medical condition that is defined as below-normal body temperature. It has three phases: mild, moderate, and severe. Mild hypothermia is classified as a body temperature of 90 - 99°F (or 32 - 35°C), moderate hypothermia at 82 - 90°F (28 - 32°C), and severe hypothermia is any temperature less than 82°F ... Oct 21, 2021 · Gently place patients in an environment most favorable to reducing further heat loss from evaporation, radiation, conduction, or convection. Remove wet clothing, and replace it with dry blankets or sleeping bags. Initiate active external rewarming with heat packs (eg, hot water bottles, chemical packs) placed in the axillae, on the groin, and ... Apr 27, 2022 · Frostbite is an injury caused by freezing of the skin and underlying tissues. In the earliest stage of frostbite, known as frostnip, there is no permanent damage to skin. Symptoms include cold skin and a prickling feeling, followed by numbness and inflamed or discolored skin. As frostbite worsens, skin may become hard or waxy-looking. 3.4. Hypothermia as a Treatment Option after Perinatal Asphyxia. In contrast to the spontaneous hypothermia of hypoxic neonates, therapeutic hypothermia, which has become the standard of care for asphyxiated neonates in recent years, is a “post-impact” intervention.hypothermia翻译：（因持续寒冷而）体温过低。了解更多。Hypothermia (low body temperature) refers to both a medical condition and a symptom of cold exposure. It occurs when the body falls below a certain temperature and cannot warm itself. Normal body temperature is considered 98.6 degrees. Hypothermia is considered anything below 95 degrees. Left untreated, hypothermia can become a medical emergency.Dec 3, 2021 · Hypothermia affects the brain, making it hard to move or think clearly. That’s why it’s dangerous—because you may be unaware of what’s happening and how to stop it. While hypothermia is most common at very cold temperatures, it can occur even at cool temperatures (above 40°F) if you become chilled from rain, sweat, or being in cold water. A Common Danger. Accidental hypothermia affects and kills people every year.In 2019, more than 1,000 died of hypothermia in the United States with almost half of those deaths occurring in the Great Lakes states of Illinois, Indiana, Michigan, Minnesota, Ohio, Pennsylvania, and Wisconsin. 1 In the Great Lakes states, 35% more people die of hypothermia than drown 1 and many of those drowning ...Oct 20, 2021 · Initially, a dog’s body responds to hypothermia by narrowing blood vessels near the surface to send blood away from the skin, legs, ears, feet, etc., and towards essential organs like the brain and the heart. Here are the symptoms of hypothermia in dogs, from mild to severe. Shivering. Muscle stiffness. Lethargy. As hypothermia worsens, dogs ... Hypothermia most often results from inadequate heat production, usually because of prolonged exposure to a cold environment (accidental hypothermia), but sometimes because of endocrinopathy, abnormal glucose metabolism, or drugs. Hypothermia can also be caused by excessive heat dissipation, malfunction of the thermoregulatory system, or ...What is hypothermia? Hypothermia is caused by prolonged exposures to very cold temperatures. When exposed to cold temperatures, your body begins to lose heat faster than it’s produced. Lengthy exposures will eventually use up your body’s stored energy, which leads to lower body temperature. 3. What are "hypothermia" temperatures. Below freezing ; 40 degrees - Ex. Shenandoahs, wind and rain ; 60 degrees - Ex. Rayanna and hurricane ; Any temperature less than 98.6 degrees can be linked to hypothermia (ex. hypothermia in the elderly in cold houses) or peripheral circulation problems such as trench foot and frostbite. 4.Learn about symptoms, treatment and prevention of hypothermia — a life-threatening condition in which the body loses heat faster than it can generate it. This content does not have an English version.Overall, the prevalence of hypothermia in hospital-based studies ranges from 32 to 85%, with the exception of a low outlier (8% in Guinea Bissau []).This wide range might in part be attributable to the varying case definition of hypothermia across studies, ranging from 35.0°C to 36.5°C, and in part to the climatic environment and its seasonal variations discussed below.A hipotermia jelei lehetnek a fáradtság, ingerlékenység, zavartság, hidegrázás, sápadt és hideg bőr, ügyetlenség, letargia, elmosódott beszéd vagy az észszerűtlen cselekvés, álmosság. Gyermekeknél a tünetek között lehet, hogy a bőr hideg, bár egészséges színű. A gyermek túlságosan nyugodt és nincs étvágya.Hypothermia is defined as an involuntary drop in body temperature below 35C. Symptoms will vary based on the severity of hypothermia. Hypothermia can be further defined based on core temperature as mild (32-35C), moderate (28-32C), severe (<28C), with some experts also categorizing certain individuals with profound (<24C) hypothermia. More severe symptoms and morbidity/mortality are associated ...Generally, hypothermia is associated with freezing temperatures. However, hypothermia can occur in mildly cool temperatures if an individual is wet or exposed to the elements. Some individuals are more susceptible to hypothermia, such as the elderly, those under the influence of drugs or alcohol, and infants sleeping in cold areas. What is hypothermia? Hypothermia, or low body temperature, is a condition that occurs when your body’s temperature drops below 95 degrees Fahrenheit (35 degrees Celsius). The average normal body temperature is 98.6 F (37 C). Hypothermia is a medical emergency. Aug 17, 2023 · The HYBERNATUS (Hypothermia for Brain Enhancement Recovery by Neuroprotective and Anticonvulsivant Action after Convulsive Status Epilepticus) trial was a multicenter, open-label, parallel-group ... Hypothermia is a condition that occurs when someone’s body temperature drops below 35°C (95°F). Normal body temperature is around 37°C (98. 6°F). Hypothermia can become life-threatening quickly, so it’s important to treat someone with hypothermia straight away.3. What are "hypothermia" temperatures. Below freezing ; 40 degrees - Ex. Shenandoahs, wind and rain ; 60 degrees - Ex. Rayanna and hurricane ; Any temperature less than 98.6 degrees can be linked to hypothermia (ex. hypothermia in the elderly in cold houses) or peripheral circulation problems such as trench foot and frostbite. 4.Hypothermia occurs when core body temperature is < 35°C. mild: 32-35°C. moderate: 28-32°C. severe: < 28°C. Swiss staging system. I – clearly conscious and shivering. II – impaired consciousness without shivering. III – unconscious. IV – not breathing.Aug 17, 2023 · The HYBERNATUS (Hypothermia for Brain Enhancement Recovery by Neuroprotective and Anticonvulsivant Action after Convulsive Status Epilepticus) trial was a multicenter, open-label, parallel-group ... May 12, 2022 · Hypothermia (low body temperature) refers to both a medical condition and a symptom of cold exposure. It occurs when the body falls below a certain temperature and cannot warm itself. Normal body temperature is considered 98.6 degrees. Hypothermia is considered anything below 95 degrees. Left untreated, hypothermia can become a medical emergency. Jan 31, 2023 · Left in the cold for too long, dogs can develop hypothermia, a dangerous condition that occurs when the core body temperature drops too low.For dogs, mild hypothermia begins to set in when their ... Hypothermia is what happens when your body temperature gets very low. For an older person, a body temperature of 95°F or lower can cause many health problems, such as a heart attack, kidney problems, liver damage, or worse. Being outside in the cold, or even being in a very cold house, can lead to hypothermia. Try to stay away from cold places ...Hypothermia is defined as a body core temperature below 35.0 °C (95.0 °F) in humans. Symptoms depend on the temperature. In mild hypothermia, there is shivering and mental confusion. In moderate hypothermia, shivering stops and confusion increases. What is hypothermia? Hypothermia is caused by prolonged exposures to very cold temperatures. When exposed to cold temperatures, your body begins to lose heat faster than it’s produced. Lengthy exposures will eventually use up your body’s stored energy, which leads to lower body temperature. A. Hypothermia is a condition in which an organism's temperature drops below that required for normal metabolism and function. For people in stage 1 hypethermia, body temperature drops by 1-2°C below normal temperature (35-36°C). Mild to strong shivering occurs. Hypothermia is a condition that occurs when your body temperature drops below 95°F. Major complications can result from this drop in temperature, including death. Hypothermia is particularly ...Feb 26, 2016 · A body temperature below 95 °F (35 °C) is a medical emergency and can lead to death if not treated promptly. Anyone who spends much time outdoors in cold weather can get hypothermia. You can also get it from being cold and wet, or under cold water for too long. Babies and old people are especially at risk. Babies can get it from sleeping in a ... What is hypothermia? Hypothermia, or low body temperature, is a condition that occurs when your body’s temperature drops below 95 degrees Fahrenheit (35 degrees Celsius). The average normal body temperature is 98.6 F (37 C). Hypothermia is a medical emergency. Hyperthermia is an abnormally high body temperature — or overheating. It's the opposite of hypothermia, when your body is too cold. Hyperthermia occurs when your body absorbs or generates more heat than it can release. A human’s normal body temperature is about 98.6 degrees Fahrenheit.Winter Weather. Stay Warm. Stay Informed. and healthy during winter. During extremely cold weather, staying warm and safe can be a challenge. Learn how to prepare for winter storms, prevent cold temperature-related health problems, and protect yourself during all stages of a winter storm.Oct 21, 2021 · Gently place patients in an environment most favorable to reducing further heat loss from evaporation, radiation, conduction, or convection. Remove wet clothing, and replace it with dry blankets or sleeping bags. Initiate active external rewarming with heat packs (eg, hot water bottles, chemical packs) placed in the axillae, on the groin, and ... Hypothermia; Prevention. Frostbite can be prevented. Here are tips to help you stay safe and warm. Limit time outdoors in cold, wet or windy weather. Pay attention to weather forecasts and wind chill readings. In very cold, windy weather, exposed skin can develop frostbite in a matter of minutes. Dress in several layers of loose, warm clothing.Hypothermia is defined as a body core temperature below 35.0 °C (95.0 °F) in humans. [2] Symptoms depend on the temperature. In mild hypothermia, there is shivering and mental confusion. In moderate hypothermia, shivering stops and confusion increases. [3] In severe hypothermia, there may be hallucinations and paradoxical undressing, in which ...Hypothermia is a life-threatening condition that occurs either due to prolonged exposure to cold conditions, as a result of underlying illness or injury, or from anesthetic procedures and certain drugs that affect a dog’s ability to maintain core body temperature. When hypothermia occurs from a cold environment, it is called primary ...clinical consequences of hypothermia . The table above summarizes the clinical effects of different levels of hypothermia. This isn't 100% accurate, but may provide a general idea of whether the patient's condition can be explained by the degree of hypothermia, or whether something else is going on. For example, mild hypothermia cannot explain ...Nov 29, 2022 · Hypothermia occurs when the body temperature deviates by two or more degrees from the norm. In order to protect itself, the body goes into overdrive to try and compensate for the low temperature ... Hypothermia is when the body gets very cold and can't warm up on its own. Body temperature is normally around 98.6°F (37°C). Hypothermia is when it drops below 95°F (35°C). Hypothermia can happen after being in cold air or water for too long. Young children and older adults are more likely to get hypothermia.Early warning signs of hypothermia include: Feeling cold. Shivering. The "Umbles:" stumbles, bumbles, grumbles, and mumbles. These are signs that cold is affecting your body and brain. To prevent more serious problems, take action as soon as you notice early signs of frostbite or hypothermia. Get out of the cold, wind, rain, or snow if possible.Jun 20, 2020 · Hypothermia is defined as a drop in body temperature below 35 °C. Acute causes of hypothermia include accidental hypothermia due to exposure to cold weather or cold water immersion. Other causes of hypothermia can be metabolic, drugs, sepsis, and lesions in the posterior part of the hypothalamus. In our case, the physiopathology of hypothermia ...
Hypothermia is defined as an involuntary drop in body temperature below 35C. Symptoms will vary based on the severity of hypothermia. Hypothermia can be further defined based on core temperature as mild (32-35C), moderate (28-32C), severe (<28C), with some experts also categorizing certain individuals with profound (<24C) hypothermia. More severe symptoms and morbidity/mortality are associated .... Metra
Background Hypothermia is associated with adverse outcome in patients with sepsis. The objective of this study was to characterize the host immune response in patients with hypothermic sepsis in order to determine if an excessive anti-inflammatory response could explain immunosuppression and adverse outcome. Markers of endothelial activation and integrity were also measured to explore ...Common symptoms of hypothermia include: shivering (Though this may stop as symptoms increase in severity.) shallow or slow breathing. slurred speech. fumbling hands, loss of coordination, stumbling steps. a slow, weak pulse. drowsiness or exhaustion. confusion and memory loss. loss of consciousness. Hypothermia is dangerously low body temperature, below 95°F (35°C). Take the following steps if you think someone has hypothermia: If the person has any symptoms of hypothermia that are present, especially confusion or problems thinking, call 911 right away.What is hypothermia? Hypothermia, or low body temperature, is a condition that occurs when your body’s temperature drops below 95 degrees Fahrenheit (35 degrees Celsius). The average normal body temperature is 98.6 F (37 C). Hypothermia is a medical emergency. Depending on the conditions, hypothermia can occur within minutes to hours, or slowly over days to weeks. In the air, hypothermia can develop in as little as five minutes in temperatures of minus -50°F/-45.5°C in people who are not dressed properly and have exposed skin. At -30°F/-34.4°C, hypothermia can occur in about 10 minutes.hypothermia, abnormally low body temperature in a warm-blooded creature, associated with a general slowing of physiologic activity. Hibernating animals allow their body temperatures to fall to levels only slightly above ambient temperature, in a unique kind of hypothermia from which they can recover rapidly when necessary; similar temperatures would be fatal to nonhibernators.hypothermia翻译：（因持续寒冷而）体温过低。了解更多。 Dec 3, 2021 · Hypothermia affects the brain, making it hard to move or think clearly. That’s why it’s dangerous—because you may be unaware of what’s happening and how to stop it. While hypothermia is most common at very cold temperatures, it can occur even at cool temperatures (above 40°F) if you become chilled from rain, sweat, or being in cold water. May 13, 2022 · Rapid, shallow breathing and problems with low oxygen and high carbon dioxide. Rapid heart rate. Irregular heart rhythm. Dangerously high body temperature. Excessive sweating. Patchy, irregular skin color (mottled skin) In rare cases, people at risk of malignant hyperthermia have shown signs of a reaction after intense physical activity during ... Hypothermia is a condition that occurs when your body temperature drops below 95°F. Major complications can result from this drop in temperature, including death. Hypothermia is particularly ...Hyperthermia is an abnormally high body temperature — or overheating. It's the opposite of hypothermia, when your body is too cold. Hyperthermia occurs when your body absorbs or generates more heat than it can release. A human’s normal body temperature is about 98.6 degrees Fahrenheit.Hypothermia is defined as a drop in body temperature below 35 °C. Acute causes of hypothermia include accidental hypothermia due to exposure to cold weather or cold water immersion. Other causes of hypothermia can be metabolic, drugs, sepsis, and lesions in the posterior part of the hypothalamus. In our case, the physiopathology of hypothermia ....