If your winter feel-better routine has run out ofjuice, let a needle-wielding grad student at thePacific College Acupuncture Center recharge your Chi,or natural energy, by giving it a little poke.Supervisors at the center charge $60 a treatment, butgraduate interns (with at least two years’experience) cost just $30. First, they’ll diginto your medical history before sizing up the shapeand color of your tongue for clues to your naturalbalance of cold and heat, or yin and yang. Then theyreset that balance with a “heart organ”treatment, in which you inhale a lungful of airinfused with medicinal herbs cooking in the on-sitepharmacy. Finally, close your eyes and exhale assurprisingly steady hands tap and twist wispy needlesinto heart-stimulating spots from earlobe to ankle.The tingle? That’s your Chi, taking a victorylap around your body—for half the regular rate.(915 Broadway, near 21st Street; 212-982-4600.)