Effects Of UV Rays On Overall Health

Excessive exposure to the harmful ultraviolet radiations of the sun leads to weakening of your body's immune system (which protects your body against diseases). It also increases the risk of infection, as it reduces the body's resistance to bacteria or other harmful viruses, often resulting in lesions or in extreme cases, skin cancer.

Increased exposure to Ultraviolet radiation can cause several painful, albeit temporary, injuries to the eye, known as photo conjunctivitis or photokeratitis. This results in inflammation of the cornea and/or conjunctiva within a very short period of time. That is why it is advisable to wear sunglasses to protect yourself from ultraviolet radiation, as it may cause clouding of the lenses, loss of vision or even cancer of your eyelids.

Ultraviolet rays have a number of positive benefits as well. They are required by your body for vitamin D production, that helps strengthen bones and protects your body from diseases such as rickets. Psoriasis, which leads to an increased rate of shedding of skin cells, is also slowed down by UV radiation. It also kills certain harmful germs and bacteria in our bodies.

Research suggests that excessive exposure to the harmful ultraviolet radiations of the sun leads to 99% of non-melanoma skin cancers and 95% of melanoma. The cancerous cells develop chiefly in the epidermis; by producing a mass of cancerous cells on the surface and sometimes, just beneath the surface of the skin.