Symptom: Dry, itchy skin. Photo by Fuse/Getty Images. What it might mean: It's probably winter itch, skin dryness that's a result of cold, dry air. Using a humidifier, avoiding super hot showers, and routinely slathering on a thick moisturizer will help keep skin supple.
But Death Valley is affected by several of the main causes of heat waves - the frequent presence of a high pressure system (helped by its below sea level elevation), downslope air movement from surrounding mountains, and radiation of heat from the surrounding cliffs.
Causes of heat stress and heat-related illness. There are many factors which can cause heat stress and heat-related illness, including: Dehydration â to keep healthy, our body temperature needs to stay around 37Â°C. The body cools itself by sweating, which normally accounts for 70 to 80 per cent of the bodyâs heat loss.