The promise of a quick fix for your energy crisis — whether it’s a dietary supplement, such as ginseng, or a new drug, like the narcolepsy treatment Provigil — is tempting, but experts advise you to resist.

“To get more energy, it’s better to first focus on lifestyle measures — like diet, exercise, stress reduction, and good sleep — before trying to feel better through supplements, which often haven’t been well researched,” says integrative medical specialist Woodson Merrell. If those tactics don’t help, see a doctor. A chronic condition, such as hypothyroidism or fibromyalgia, may be the source of your slump.