iStock Birds do it, bees do it, even educated fleas do it. Let’s do it, let's take a nap.
Some of us left napping behind when we graduated from preschool to kindergarten—but many of us are back in the habit. Approximately 80 percent of American adults took at least one nap in the past three months, and nearly one-third of adults nap more than once a week, according to a
