Bella always gets mysterious painful bumps after eating dark chocolate. she knows she isn't allergic to anything, so what is causing this?

Anutritional study should take all of the following into account except taste in music. family medical history. work and home responsibilities. lifestyle factors, such as smoking or alcohol consumption.

Explain what causes the skin to burn in the sun? explain why people should avoid the sun if taking a photosensitive medication?

How harmful is it to smoke a pack of cigarettes a week?