J-emine's reflexionando

(pic courtesy of sina weibo)

Thumb: gently rub the thumb to keep the brain in top-notch functioning mode, good for relieving a tense headache . Ideal for people who use their brains alot heh.
Index Finger: gently rub to improve gastrointestinal condition
Middle Finger: gently rub for strong cardiac muscles
Ring Finger: gently rub for liver protection
Pinky: gently rub to ensure good flow of ‘yin’ to keep the kidney strong; works on the heart as well

There is 6 meridians (if memory does not fail me) from the fingers that flows through the various body organs and tissues. Gentle rubbing (or pressing) on the fiver fingers can lessen and improve bodily conditions, and you can do it wherever and whenever you feel like it!