Add Yahoo as a preferred source to see more of our stories on Google. Varicose veins can cause serious health issues - Getty Whilst many of us do our best to take care of our brain, heart, skin and ...

When most of us think of a serious medical emergency, we usually think of sudden events such as heart attacks, strokes or serious injuries from a car crash. But some threats develop quietly, with ...

Plus, what to do if you experience them.