People who say they think better after having a nap may now have evidence to support their claim. A study of 15 people found that when they rested, the right hemisphere of their brains talked more to itself and to the left hemisphere than the left hemisphere communicated with itself and with the right hemisphere. This was true in both right- and left-handed people, even though right-handed people use their left hemisphere to a greater degree and left-handed people rely more on their right hemisphere.
