We’ve been told by health experts, and it’s conventional wisdom, that we should sleep between seven and eight continuous hours a day as an adult. Yet, the assumption that an eight-hour block of sleep is the ideal or norm may be a myth.
What can make you smarter in 30 minutes–or less–costs nothing, and you can do it with your eyes closed? A nap, or as some experts refer to it, a biphasic sleep schedule. This conclusion has been advanced by a number of scientists based on solid research.