THE SUN'S RAYS CONTAIN UV RAYS. Ultraviolet rays are invisible to the naked eye and do not make any difference to the feeling of warmth. We are exposed to UV rays, without even realising it. These rays penetrate deep beneath the skin and trigger the ageing process. UVA rays cause wrinkles and brown spots. UVB rays tend to work on the surface and stimulate the production of melanin.
THEY CAN CAUSE SUNSTROKE. An overdose of UVA and UVB rays, combined with insufficient hydration, can result in a serious case of sunstroke. Even if you are already tanned, you still need proper sun protection, even if you are not prone to sunburn.
Advice by Sport