Want to nap better? Just drink coffee!

According to the Japanese, they conducted a survey where people took coffee naps, i.e. by consuming 200 mg of coffee and then take a 20-minute power nap or rest. These people felt more alert and did well on their tests. But isn't drinking coffee supposed to keep you wide awake? When one consumes coffee, the caffeine kicks in and clears the adenosine, a molecule in the brain that triggers alertness. So, when Adenosine levels increase, they make one more tired. Therefore, napping at this time helps to flush out the adenosine and drinking coffee, reduces the effect of the molecule further. This results in better naps!