What are the main causes for hypothermia and hyperthermia?

WebMD describes hypothermia, including its causes, symptoms, and emergency treatment. ... Hypothermia is a potentially dangerous drop in body temperature, usually caused by prolonged exposure to cold temperatures. read more

Possible causes of hypothermia include: Cold exposure. When the balance between the body's heat production and heat loss tips toward heat loss for a prolonged period, hypothermia can occur. Accidental hypothermia usually happens after cold temperature exposure without enough warm, dry clothing for protection. read more

Cold weather is the primary cause of hypothermia. When your body experiences extremely cold temperatures, it loses heat more quickly than it can produce it. Staying in cold water too long can also cause these effects. The inability to produce adequate body heat is extremely dangerous. read more