10 minutes of low-to-moderate exercise, such as walking up and down stairs. Neither 50 mg of caffeine–about one-half cup of coffee or one can of soda–nor a placebo made chronically sleep-deprived volunteers feel better. But walking up and down office-building stairs for 10 minutes–at a relatively normal pace–made them feel more energetic and vigorous.
Source: Bottom Line Personal 7-1-2017 Patrick J. O’Connor, PhD, professor in the department of kinesiology, University of Georgia, Athens, and coauthor of a study published in Physiology and Behavior.
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