They are at risk for Osteoporosis.
Body fluids increase the risk for skin breakdown as they supply essential nutrients to the skin. In the event the blood pressure flow decreases to the skin, the skin padding will deteriorate and this can cause its breakdown.
Skin
Skin and eyes
The sun is the primary cause of skin cancer.
Human skin produces Vitamin D in presence of sun light but not the other parts of body.
The four ways that the body can be harmed by over-exposure to ultraviolet light are wrinkles, skin cancer, cataracts, and skin burns.
The body needs the sun so it can produce vitamin D. Vitamin D is needed to absorb calcium for your bones. So without sun on the skin children are at risk of rickets and adults at risk of osteomalacia.
Lasers used during therapy sessions are quite powerful, and any light that hits the skin carries the risk of mutating cells and causing melanomas. If the laser has been overcharged there is even a chance that it could burn straight through the skin. My advice is to turn up wearing a lead lined body suit, this will prevent any possible injuries.
you get sun-burned, Or you may get skin cancer. No Think scientific
The sun produces ultraviolet light, UV light, which reacts with the skins pigments, causing them to change colour. Sun burn comes when the pigments in the skin are burnt, and damaged, causing the inflimation, and redness. Basically, anything with UV lights will cause tanning. Also, be careful with sun beds, high melanoma (skin cancer) risk.
Light skin exposed to tropical sun will produce more vitamin D than dark skin, because the UV light is less filtered by the pigment melanin. That is why a light skinned person only needs a few minutes of tropical sun each day to get enough Vitamin D. Any more than that is only increasing the risk of skin cancer. The skin darkens to try to protect you from UV radiation.
People with light complexions have less skin pigmentation. Skin pigmentation absorbs ultraviolet radiation and protects your DNA from damage from the sun. If you have less pigmentation and less protection for your DNA you are more likely to get skin cancer. This is why it is recommended that you should wear sunscreen.