Harvard Health Blog
Exercise versus caffeine: Which is your best ally to fight fatigue?
By: Monique Tello, MD, MPH, Contributing Editor Chronic lack of sleep makes it hard to focus on a task. As if this didnít make complete logical sense, multiple research studies have shown that sleep deprivation has about the same effect on our cognition and coordination as a few alcoholic beverages. What do you do when you need to concentrate, but youíre tired?