In mountains, summer and winter, the sun is mandatory for successful holidays.
Skiing, Hiking, Nordic walking, Bike, Mountaineering are sports that we practice during several hours. The prolonged or repeated exposure to UV effects in altitude can be a real risk for health.
Ultraviolet rays : invisible aggressors
UV are invisible and are not heating. Sunburn is a severe burn that occurs without the feeling of any immediate heat sensation, especially with the wind and the coolness in altitude. In the mountains, several factors amplify UV noxious effects on the skin:
Light or thin clouds can reinforce the intensity of the UV by spreading them.
We must know that UV go through clouds. A cloudy weather lets through more than 90% of UV. Even by cloudy weather, we have to protect ourselves efficiently.