Routinely squeaking by on five hours or less per night increases visceral fat levels, according to a 2010 Wake Forest University study. What’s more, after analyzing 28 different studies, UK researchers found that people who slept 5.5 hours or less per night ate an extra 385 calories the day after compared to those who snoozed for at least 7 to 12 hours. On top of that, they preferred to munch on fatty foods full of empty calories, like chips.
“Belly fat or abdominal fat is the subcutaneous (which means under the skin) fat that sits around the waist and provides a store of energy, and also protection and heat, for the organs,” says Tarik Belalij, personal trainer and nutritionist at Everyone Active Becontree Leisure Centre. “Small amounts of fat below the skin is normal and healthy, it is the visceral fat, which surrounds the organs that can be the most dangerous type of fat – leading to heart attacks and diabetes.”