
Why do energy drinks make me tired? What men should know about caffeine crashes and bedtime timing
Yes, energy drinks can make you tired. A single 16 ounce can may deliver 160 to 300 mg of caffeine, and controlled sleep research shows caffeine can still impair sleep when taken 6 hours before bed, which helps explain why the “boost” can turn into next day sleepiness.[1] [3] The short lift often comes from ...



