A Nation of Sleepyheads

A sleepy American is a crabby American. And more’s the pity, since a study by the National Sleep Foundation finds 47 million adults get too little sleep. (The chart indicates the age skew of the sleepyhead demographic.) How do people behave when insufficient shut-eye leads to daytime sleepiness? Not well: 44 percent said they’re more apt to have trouble getting along with others; 64 percent are more likely to become aggravated with waiting in line or being stuck in traffic; 65 percent said they’re more likely to make mistakes.