Simple, source-checked reads on health, habits and learning

Three quarters of the 196 people in this study were still falling asleep after midnight when the eight weeks ended.

In the Harvard Aging Brain Study, a few hundred volunteers strapped small step counters to their waistbands and then carried

Thirty-one volunteers in Maastricht, all between 60 and 75, spent 16 weeks eating about 60 grams of plain roasted peanuts

A step counter on your wrist records one number a day, and most of us glance at it, shrug, and

Most step-counting advice treats every step as equal. Walk 8,000, hit your ring, move on. A study published in the

As we get older, the brain slowly loses tissue. It happens to everyone, and on a scan it shows up

Picture a university student at the end of a long week. She has not been to the gym since Monday,

Walk down any supermarket aisle and most of what you see is ultra-processed: packaged snacks, fizzy drinks, sugary cereals, ready

Diwali means sweets in almost every home: a box from a neighbour, a plate offered at every visit, a tray

Every year around this time, the air in north India changes. News reports from late September describe Delhi’s average air

India has plenty of sunshine, so low vitamin D seems like a problem that should belong to colder countries. Indian