Want lean abs? Here are 4 rules to live by…
1. Minimise intake of sugar and quick-release carbs, which excite fat-storing hormone insulin
2. Reduce stress, which promotes cortisol, linked to abdominal fat storage
3. Get eight hours’ sleep per night to keep appetite hormones on the level (the no-doughnut level, that is)
4. Reduce overall body fat with heavy lifting and interval training
