If cataracts are left untreated over a period of time, blindness may result. ... Aside to actinic keratoses, the premature ageing of skin is also caused by chronic exposure to the Sun; this makes the skin become thick, wrinkled and leathery. ... Melanin production takes time; this is why some people take longer to tan. ... Fair skinned people need to have sunscreen on every time they go outside because they are burned very easily and need to protect their skin from the harmful UV radiation coming from the sun. ... Another result to the tanning beds is wrinkles, this is because when the skin ...

• Word Count: 2931
• Approx Pages: 12
• Grade Level: High School