Experts from the medical school of Harvard University found that the number of calories burned depends not only on human activity but also on the time of day.
The researchers came to the conclusion that the human body spends 10% more calories in the evening than in the morning. This was accomplished through a series of experiments, for example, a group of people were placed in a laboratory with no Windows. The subjects could not track the time of day, their night mode gradually shifted.
In the end, the difference between biological and actual time was a few hours. It turned out that the coincidence of the biological and the actual hours people spend the least amount of calories from 04.00 to 06.00 and the highest – from 17.00 to 20.00. The study reaffirms the need to respect sleep for dieters.