Paresthesia is a feeling of numbness, burning, or tingling, usually in the extremities, such as the hands and feet. It may also involve a sensation of crawling or itching on the skin. It is usually ...

Many factors can cause paresthesia — a tingling, prickling, or pins-and-needles sensation — on the scalp, including anxiety, problems with the nerves, and skin conditions such as psoriasis or eczema.

Most of us think we’re protecting ourselves from noxious chemicals with half-superstitious gestures: filtering the water we drink a pitcher at a time, or confining ourselves to the organic aisles of ...

Reports of a French study claimed last week that exposure to certain insecticides during pregnancy were linked to “abnormal behaviour” in children. Called pyrethroids, these chemicals are present in ...

A pins and needles feeling or tingling in your head can be unsettling. This can affect neighboring parts of your body, too, such as the face and neck, and you may also feel numbness or burning. Having ...