New study shows big health disadvantage for women who stay up late — and it isn’t about losing sleep

Night owls who stay up watching TV or on their devices are known to get a little less sleep, but there is another factor that is contributing to a lower quality of life.

A glance at studies over the last decade have shown that watching devices in the bedroom and at night before bed has increased, with nearly half the population giving in to the blue glow.

‘When people eat may be just as important as what they eat.’

ET phone home

A 2025 study of more than 120,000 participants found that over 40% (~50,000) reported daily screen use before bed.

However, another nighttime ritual is contributing to poor health, specifically among women: late-night eating.

A study from New Zealand evaluated hundreds of women and their eating habits, tracking body-fat