For many people, transitional seasons mean one thing: allergies. Until recently, skin allergies were considered to be caused by a malfunction in the immune system, but Israeli researchers have learned that the cause may be in the body's "gatekeeper" – the skin.

Ever had an itch you can't scratch? It may not be the most serious of physical ailments, but it certainly is among the most annoying ones! Scientists have now shown that itchiness can be stopped by "silencing" the neurons that create the sensation.