Although we don't generally think of sleep as a great time to get things done, our bodies do a tremendous amount of hard work. Far from being something non-productive that takes up our valuable time, sleep is a vital biological function necessary to maintain health.

Cultural stress is a new type of stress emerging out these days and is superimposed on the normal stresses of everyday life. Technology alone is not entirely to blame for cultural stress, but the 'freedom' to work anywhere, anytime adds up to it.