(Michael Mosley, BBC News) "One of the first things that we were looking at," [says Dr Steve Faulkner of Loughborough University], "is the energy expenditure while you're in the bath and what we found was an 80% increase in energy expenditure just as a result of sitting in the bath for the course of an hour."
This is nothing like as many calories as cycling for an hour (which comes out at an average of 630 calories) but we do burn 140 calories, the equivalent of a brisk 30-minute walk.
But what about our blood sugar levels?...
"What we found," Steve says, "was that peak glucose was actually quite a bit lower after the bath, compared with exercise, which was completely unexpected"
In fact our volunteers' post-meal glucose levels are, on average, 10% lower after the baths than after the exercise.[Click the title, above, to post a comment.]