File this under "no duh" studies: If another sleep-deprived day in the office has you looking for that elusive nap room, look no further than the kitchen coffee. Though coffee has gotten a bad rap, fatigue in the workplace raises your risk of making mistakes and, depending on where you work, getting injured. A study of sleepy shift workers found that nothing was more effective than caffeine at preventing on-the-job errors — (somewhat surprisingly) not even prescriptions for alertness or naps. Next time you start falling asleep at work, drink up! But er, you probably knew that already.
The Best Jobs of 2015, Ranked by Salary and How Likely You Are to Get the Gig
Better brush up on your math.
The Surprising Benefit to Working With Mostly Women
Move over, boys!