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The first stage of cold water immersion syndrome, the cold shock response, includes a group of reflexes lasting under 5 min in laboratory volunteers and initiated by thermoreceptors sensing rapid skin cooling. Water has a thermal conductivity 25 times and a volume-specific heat capacity over 3000 times that of air; subsequently, surface cooling ...
Other cold-related injuries that can be present either alone or in combination with hypothermia include: Chilblains: condition caused by repeated exposure of skin to temperatures just above freezing. The cold causes damage to small blood vessels in the skin. This damage is permanent and the redness and itching will return with additional exposure.
A hypnic jerk, hypnagogic jerk, sleep start, sleep twitch, myoclonic jerk, or night start is a brief and sudden involuntary contraction of the muscles of the body which occurs when a person is beginning to fall asleep, often causing the person to jump and awaken suddenly for a moment.
Onset of symptoms: Here, you start experiencing the first signs of a cold, such as a sore throat, sneezing, and mild fatigue. This stage marks the body’s initial immune response to the infection.
When the weather starts to cool, a common question often arises: "Am I sick, or is it just allergies?" Here's what the experts say.
While there’s no magic cure for the common cold, managing symptoms and giving your immune system a helping hand can make a big difference. Over-the-counter (OTC) cold medications help, but some ...
Myoclonus is a brief, involuntary, irregular (lacking rhythm) twitching of a muscle, a joint, or a group of muscles, different from clonus, which is rhythmic or regular. Myoclonus ( myo- "muscle", clonus "spasm") describes a medical sign and, generally, is not a diagnosis of a disease .
“With viral infections, sometimes people start getting better and feeling pretty good, and all of a sudden, they feel bad again” says Gersch. “That’s a good sign to come in to see a doctor.