ANN ARBOR—If you want to lose weight, get more sleep.

In a new article appearing in the current issue of Obesity Reviews, University of Michigan researcher Michael Sivak presents calculations showing that replacing one hour of inactive wakefulness” such as watching television” with sleep can result in a 6 percent reduction in caloric intake.

“Caloric consumption in a society with readily available food is likely to be approximately proportional to the number of hours of being awake,”