Are Dim Days and Bright Nights Undermining Your Long-Term Health?

Modern life gives many of us too little daylight, too much evening light and too little darkness - a pattern linked with poorer sleep, brain ageing and long-term disease risk.

Most advice about light and health starts at the wrong end of the day.

We’re told to stop scrolling before bed, switch on night mode, buy blue-light glasses. There’s some truth in that: bright, blue-rich light in the evening really can delay the body’s night signal.

But what if that’s only a small part of the story?

The bigger problem is that modern life h…