Ultraviolet (UV) rays come in 2 forms, A and B. UVA rays are also know as long wave rays and UVB rays are known as shortwave rays. UVB rays are factually more dangerous and damaging to our bodies, however, UVA rays are significantly more prevalent in our day to day activities. This is why UVA and UVB protection is necessary.
UVA and UVB rays can cause damage such as; premature skin aging, eye damage, cataracts and many types of skin cancer.
To protect yourself from these damaging rays, always wear some type of protective clothing, sun screen with a Sun Protection Factor (SPF) of 15 or higher, and for your delicate eyes; 100% UVA & UVB protected reading glasses called sun readers.