So that's why car headlights are so blinding
Several seconds may elapse before your night vision recovers, putting your life and those of other road users in danger.
Why your phone is keeping you awake at night
A wealth of research demonstrates why everyone should banish screens from the bedroom — even if they’re switched off.
Could this be cancer’s magic bullet?
The results of an experimental blood cancer treatment have been hailed as amazing.
Super senses? It’s not a fantasy
From intense colour vision, to heightened powers of taste, there are people whose senses are hugely heightened.
Can gut bacteria affect the brain?
John Naish taks a look at whether probiotics can make you feel less anxious. . .
The return of the nervous breakdown
The term nervous breakdown seems to be fast coming back into vogue. John Naish finds out why. . .
The bionic soldier of the future
The British military wants to create armies of mutant soldiers, equipped with unstoppable physical and mental powers.
The sinister reasons we eat junk food
A new book looks at how food makers use salt, sugar and fat to make consumers hit their ‘bliss points’.
Garlic soup for the soul
Will 50 cloves of garlic kill a cold - or just your love life?
No Neanderthal babies, please!
Just because scientists have the ability to enact their fantasies, it does not mean that they should, writes John Naish.
How festive food keeps you healthy
Despite its button-bursting reputation, that festive meal could actually have done you no end of good.
‘Many drugs not tested on women’
Many pills most commonly used daily by women were never tested on females before being put on the market, an expert says.
Being grumpy could be good for you
John Naish look at research which shows that it is life’s grumpy people who often fare better in the long term.
Is this the Armageddon virus?
Why experts fear a disease that leaps from animals to humans could devastate mankind in the next five years.
Soft drinks, hard facts
Having seen the evidence, I don’t touch fizzy drinks any more, says John Naish.
Varied diet? No thanks!
Meet the fussy eaters who survive on pork chops, toast and tea or pizza. . . and are perfectly healthy, thank you.
Do happy pills just make you sad?
Depression levels continue to soar. But are antidepressants the panacea we hope them to be? John Naish investigates.
Why dieting makes you fat
As research lays bare the dangers of yo-yoing weight, some experts argue it would be better not to diet at all.
We need fat - but the right kind
John Naish takes a long, hard look at the issue of fat in our diet.
Flabby and unhealthy? Blame your parents
Experts fear our lifestyle illnesses are a result of being born to couples who followed the fashions of the Fifties and Sixties.
A guide to memory
Memory is a strange and complex thing, as this guide to the mind makes clear. . .
Debunking the great detox myth
Far from ridding your body of unwanted elements, you may get a lot more than you bargained for when it comes to detoxing rituals.
City living can make you fat and infertile
John Naish says we should slap a health warning on city life. . .
The rotten truth about sweet fruit
It sounds like the perfect healthy sweetener - but ‘fruit sugar’ is one of the most damaging ingredients in our food.