If you think you don't have time to take the stairs, you may be out of an excuse, according to a study published Monday.
Researchers at one Canadian hospital found that when they had doctors take the stairs instead of the elevator, it saved each an average of 15 minutes out of the workday.
The stairs were more efficient, it seemed, since there was no wait-time for a lift, according to findings reported in the Canadian Medical Association Journal.
In general, experts recommend that people find ways to add "incidental" exercise to their daily lives. That includes small steps like parking farther away from your destination and bypassing the elevator in favor of the stairs.
But many people habitually head straight for the elevator, noted Dr. Thomas Wilson, the senior researcher on the new study. And the assumption that it saves time may be one reason.