Winter tiredness, cured!

Are the season’s blustery winds, frigid temperatures and scant sunlight robbing you of energy and dragging you down? The right supplement will put the pep back in your step—and more!

Energize—and end memory lapses — with B complex

At least four in 10 of us can restore our youthful energy— plus sharpen our brain function—just by taking a B complex supplement daily, say British researchers. B’s help all of your cells, including your neurons, quickly convert glucose into usable energy, yet your ability to absorb these nutrients drops with age. Follow package directions for dosage.

Check with a doctor before starting any new supplement.

Energize—and prevent colds— with cordyceps

This medicinal mushroom extract helps your muscle and brain cells burn blood sugar for fuel, increasing your energy, endurance and stamina 33%, says Georges Halpern, M.D., author of Healing Mushrooms. Cordyceps also ratchets up your production of virus-fighting white blood cells, cutting your risk of colds and other infections 50%, Asian studies show. ■ One option: Life Extension Asian Energy Boost ($18 for 90 capsules, Lef.com/ww). Follow package directions for dosage.

Energize— and KO gas— with probiotics

Bloating, indigestion, and gas . . . if you’re among the one in four of us who wish our belly would digest rich holiday food without causing trouble, try a mixed probiotic supplement. University of Kansas research shows probiotics crowd out the intestinal bacteria that can cause fatigue and digestive problems. Follow package directions for dosage.

Energize—and cheer up— with holy basil

If holiday parties and other events are draining your energy stores— and your mood—holy basil can help. A daily 400-mg. to 500-mg. dose is shown to increase pep and happiness within 72 hours of the first dose, reports the Journal of Ayurveda and Integrative Medicine. The herb helps your brain produce fatigue-fighting, mood-elevating hormones like serotonin and dopamine, explains study author Marc Cohen, PH.D.