Are you feeling sluggish? Then throw your shoulders back! Studies show that lifting your head, standing up straight and smiling can help you feel 25 percent more refreshed in 30 seconds. Great posture and an upbeat expression trick the brain into producing energizing neurotransmitter.
So whenever you feel you're running on low batteries, lift your chin up, smile and stand up straight.
and of course, a smile exchange with your office mate will surely give your the needed uplift to lasts perhaps more than a day.