Story highlights

Calorie restriction is a diet that reduces calorie intake without incurring malnutrition

Adults who reduced calories by 25% for two years reported many benefits

CNN  — 

You’re human, so chances are, you’re interested in getting more sleep, having better sex and improving your mood.

A secret to all these things – at least according to one new study – is calorie restriction.

Researchers at the Pennington Biomedical Research Center in Baton Rouge, Louisiana, recruited more than 200 healthy women and men between the ages of 20 and 50. Each had a body mass index between 22.0 and 28.0, making them either normal weight or overweight, but not obese.

The scientists behind this research, led by Corby Martin of Pennington’s Ingestive Behavior Laboratory, separated the participants into two groups for the two-year study: one that would be bound to a diet that restricted calories by 25%, and a control group whose members could continue to eat whatever they wanted.