“Sometimes, that’s all you need.”
A hug is a good way to release feel-good endorphins into the bloodstream. It is also a quick, simple and ‘warm and fuzzy’ way of reinforcing human relationships (and human-other animal ones too). Even for me, though I’m not the most touchy-feely person, a warm and firm hug from a loved one just makes me feel so much better.
So go ahead, give someone you care about a hug today. It is free after all.