Have you ever noticed that good energy is contagious? Think about it.
You smile at a bank teller. The teller feels good and tells the next customer he has a nice shirt. Then, that guy holds the door for a stranger and so on.
Call it pay it forward, the butterfly effect, karma, whatever.
Point is: You do something good; at some point it comes back to you.
But all that good energy has to start somewhere, right? Well, now good energy can start without the jitters ... try popping some American ginseng instead of grabbing that morning cup of joe. A recent study at the Mayo Clinic found that taking 1,000 to 2,000 milligrams of the herb can provide an all-day energy boost. Five hundred milligrams of L-carnitine -- a naturally occurring amino acid which plays a vital role in the metabolism of fat -- will also do the trick. Of course, the best energy boost is weight lifting. Studies show that pumping iron three times a week can increase energy levels by up to 50 percent even on days you don't lift.