According to an article in Men’s Health, a new study offers a caffeine-free way to get through the afternoon slump. In the study, published in Physiology & Behavior, researchers had 18 women who were chronically sleep-deprived complete two separate experiments. In one, participants were given 50 milligrams of caffeine, roughly equivalent to a 12-ounce can of Mountain Dew. In the other, the women were asked to walk up and down a set of stairs at a regular pace for 10 minutes. Researchers found the participants felt significantly more energetic after climbing the stairs than they did after taking the caffeine. Researchers also tested the participants’ working memory and reaction time after completing the tasks, and found no difference between those who drank coffee and those who took the stairs.
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