“Avoid sunlight, it will give you skin cancer.”

You've probably heard people say it, but it isn't always good advice. Sunlight is our most important source of vitamin D. The current epidemic of Vitamin D deficiency is largely a result of avoiding healthy levels of sun exposure.

The amount of sunshine time we need in order to make enough vitamin D varies from person to person. It is affected by things like skin type, time of day and time of year. Often, just a few minutes of sunshine several times a week is enough.

Nearsighted people have what is called myopia. They need glasses to clearly see across the room or to see objects in the distance. Some people opt for Lasik eye surgery which largely corrects myopia by changing the surface curvature of the cornea.