I have heard that if the stomach is pulled insideabdominal muscles are flexed deliberately (kind of forcibly) throughout the day, it increases metabolism and helps reduce weight. I have a few questions regarding this as I am trying to reduce weight:
- Is it true?
- If yes, how safe it is it?
- How long should I do it (try to do ite.g. the whole day or a few minutes in aeach day)?