SMILES
I know some people will cringe and say it’s too corny or two flaky, but surrounding yourself with smiley faces really can lift your mood. They don’t have to be round yellow heads with black eyes and black smiles, though; any smile will do.
Subconsciously, a room full of smiles makes a person feel more secure, more confident and happier. Even if those smiles are just in the form of pictures or graphics. Conversely, a room full of frowns and grimaces will increase stress and reduce happiness.
If you are what you eat, you feel your environment. Make yours a positive, nurturing one.
Source: Happy Guy

Oh, I love to smile, giggle and laugh. This is the reason in my old friend's term, called Old Age, I do not suffer Arthritis or any inflammatory diseases. Touch Wood according to Ozzie abracadabra.