It is interesting that just turning up the corners of your mouth (even slightly) into a smile can stimulate the pleasure centres of your brain and help you relax.
One of the reasons is that smiling relaxes most of your facial muscles - the place where tension often concentrates.
We have all been training ourselves since childhood to associate smiling with pleasure and feeling good. So, simply by smiling we bring back those associations.
To intensify the positive effect take a minute to allow your smile to help you recall a time you were happy and smiling from your heart. Go on close your eyes and find the warm memory . . . . .
Know that the love you found just now is always there, always available, that LOVE IS YOU.