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Hypothermia occurs when the body's core temperature drops below 35°C (95°F), potentially becoming life-threatening. While often caused by cold weather, it can also develop in cool, wet, or windy conditions. The body normally regulates temperature through shivering and blood vessel constriction, but in cold environments, heat loss can exceed production. Hypothermia progresses in stages, from mild (shivering, confusion) to severe (loss of coordination, unconsciousness). Anyone can be affected, but older adults, young children, people with medical conditions, and those under the influence of drugs or alcohol are more vulnerable. Early signs include shivering, confusion, fumbling hands, and drowsiness. Severe hypothermia can lead to an absence of shivering, unconsciousness, and a slow, irregular heartbeat. Prevention includes wearing layered, waterproof clothing, staying dry, and minimizing wind exposure. If hypothermia occurs, immediate warming with blankets and warm fluids is crucial, and medical treatment may be required in severe cases.

Hypothermia occurs when the body's core temperature drops below the normal range, generally considered to be below 35°C (95°F). This condition can become life-threatening, as prolonged exposure to cold temperatures can interfere with the body's ability to function. Hypothermia often results from cold weather exposure, but it can also occur in cool, wet, or windy conditions that lower body heat quickly, even above freezing temperatures.

How Hypothermia Happens

Under normal conditions, the body maintains its core temperature through mechanisms like shivering and blood vessel constriction. However, in cold environments, the body can lose heat faster than it can produce it. Hypothermia can progress in stages, from mild (shivering, confusion) to severe (loss of coordination, unconsciousness), where the heart and other organs are at serious risk of failure.

Who's at Risk?

Hypothermia can affect anyone, but certain groups are more vulnerable, including older adults, young children, people with certain medical conditions, and those under the influence of drugs or alcohol. Outdoor workers, hikers, and people without proper winter shelter or clothing are also at higher risk.

Recognizing Hypothermia

Early signs include shivering, confusion, fumbling hands, and drowsiness. Severe hypothermia can lead to an absence of shivering, unconsciousness, and a slow, irregular heartbeat. Recognizing these symptoms early is crucial for preventing severe outcomes.

Prevention and Treatment

Preventive steps include wearing layered, waterproof clothing, staying dry, and keeping wind exposure to a minimum. If hypothermia occurs, immediate warming with blankets and warm fluids is essential, but in severe cases, medical treatment may be required.