cold adaptation

Cold adaptation is of three types: adaptation to extreme cold, moderate cold, and night cold. Extreme cold favours short, round persons with short arms and legs, flat faces with fat pads over the sinuses, narrow noses, and a heavier-than-average layer of body fat. These adaptations…

…seen in response to extreme cold, humid heat, and high altitudes.

Neanderthals were a cold-adapted people. As with their facial features, Neanderthals’ body proportions were variable. However, in general, they possessed relatively short lower limb extremities, compared with their upper arms and legs, and a broad chest. Their arms and legs must have been massive and heavily muscled. This…

… induced by excessive heat or cold that can impair functioning and cause injury or death. Exposure to intense heat increases body temperature and pulse rate. If body temperature is sufficiently high, sweating may cease, the skin may become dry, and deeper and faster breathing may follow. Headaches, nausea, disorientation, fainting,