Hack Flashback and The MIT Hall of Hacks are on view at the Museum's main exhibition center at 265 Massachusetts Ave. Admission is free to members of the MIT community. Seventy-five years ago, sleep was defined as the absence of wakefulness, he said. Now researchers define it as the absence of alpha waves. Oddly enough, people whose EEGs clearly indicate a state of sleep will claim 50 percent of the time that they were actually awake.
Coffee is used irresponsibly.
After dinner at a restaurant they shouldn't ask if you want coffee. He also recommended not drinking either alcohol or caffeine within six hours of bedtime. Because sleep requirements and habits are a function of age, so is the need to nap, which decreases during childhood and then begins a slow climb. The differences, he speculates, are based on a breakdown of the internal clock. Air Force Col.