Hand-washing after touching animals or interacting with pets, whether yours or someone else's, is important. The kitchen is a ...

Anyone who uses their hands or fingers a lot can develop calluses ... the skin on a callus is typically less sensitive to ...

In Muslim countries, a hand over a heart is a respectful way to greet someone you are not accustomed to touching. And there is the Hawaiian shaka sign, adopted and popularised by American surfers ...