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91av. Science news and long reads from expert journalists, covering developments in science, technology, health and the environment on the website and the magazine.

Health

Falling asleep isn’t a gradual process – it happens all of a sudden

Brain activity from more than 1000 people shows a rapid transition from being awake to being asleep, rather than a slow transition between the two states

News

Health

Having children plays a complicated role in the rate we age

News

Health

Covid raises risk of heart issues in children more than vaccination

News

An illustration of polycystic ovary syndrome, which causes the ovaries to enlarge

Health

We're closing in on how genetics may influence your PCOS risk

News

Health

Cavities could be prevented by a gel that restores tooth enamel

News

Health

Walking 3000 steps a day seems to slow Alzheimer's-related decline

News

An illustration of an hourglass with a tortoise on top and a hare below

Health

Our bodies are ageing faster than ever. Can we hit the brakes?

Features

Health

The gut microbiome may play a role in shaping our personality

News

Health

Magnetic gel could remove kidney stones more effectively

News

Health

Stem cell therapy lowers risk of heart failure after a heart attack

People who receive stem cell therapy within a week of their first heart attack have nearly a 60 per cent lower risk of developing heart failure years later

News

Health

Can't focus after a bad night's sleep? Your dirty brain is to blame

News

Health

US public health system is flying blind after major cuts

Analysis

Health

Men may have to exercise more than women to get same heart benefits

News

Health

Unpicking the genetics of fibromyalgia sheds new light on its causes

News