Sleep deprivation has been linked to changes in appetite and weight gain, but researchers say this could happen in just six weeks

Pooled analysis of two trials shows impact when losing just 1.5 hours a night

Sleep deprivation has been linked to changes in appetite and weight gain, but researchers say this could happen in just six weeks

People who cut back on shut-eye were also more likely to spend more time sitting during the day, amplifying the health risks.

The impacts were heightened in men and postmenopausal women

The new report looked at how quickly you gain weight, and has explained why

The impacts were heightened in men and postmenopausal women