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Close-up picture of a Tibetan woman looking into the distance. She is carrying a baby in a shawl on her back. The background of the image is blurry.
Natural selection is unfolding right now in these remote villages in Nepal Physiological traits that help Tibetan women survive at high altitudes are being selected for within the population, meaning they may be becoming more common, new research hints.
A close-up of chickens in an industrial farm
Bird flu could become deadlier if it mixes with seasonal flu viruses, experts warn As of now, 17 states have reported H5N1 bird flu cases in humans, but there is still no evidence for transmission between people. Could that change?
photo of a woman's hands holding a large table-top alarm clock and adjusting the time
The case against daylight saving, from a neurologist and sleep expert While that "extra" hour of sunlight in the evenings can be exhilarating, it comes with significant health trade-offs.

Latest about Health

A close-up of a young boy drinking a glass of milk

Why does dairy make antibiotics less effective?

By Clarissa Brincat published

Dairy products can affect the way certain medications work. But why?

Medicine & Drugs
Ordo Sonic+ Electric Toothbrush

Ordo Sonic+ electric toothbrush review

By Anna Gora published

Does the budget-friendly Ordo Sonic+ electric toothbrush offer good value for money?

Health
A woman holds a patient's hands in a hospital bed

How do people die of the flu?

By Bryan Rocha, Nicoletta Lanese published

Severe flu infections can lead to a range of deadly complications, especially in people whose immune systems are compromised by age or disease.

Flu
A gold coin with a "B" symbol is shown in focus on the left-hand side of the image. The background is black and blurred. On the right-hand side of the image there is another, smaller blurred gold coin.

Potential health hazards of cryptocurrency mines laid bare by scientists

By Emily Cooke published

Anecdotal reports suggest that cryptocurrency mines can have harmful knock-on effects on people's health, but the true scale of the problem is still unknown.

Health
A split image showing illustrations of viruses on the left and bacteria on the right

Which came first: viruses or bacteria?

By Victoria Atkinson published

Viruses and bacteria have been around for billions of years, but which came first?

Viruses, Infections & Disease
A woman sits on the couch under a blanket and blows her nose

How long is the flu contagious?

By Marilyn Perkins published

Many factors affect the infectious period of seasonal influenza, commonly called "the flu," but there are some good rules of thumb for when it's safe to return to work or school.

Flu
Plastic kitchen utensils.

Spatulas and takeout containers made from recycled black plastic may carry flame retardants

By Michael Schubert published

New research has detected high levels of flame retardants in some toys, kitchen utensils and other household items made from recycled black plastic. But the potential health effects remain unclear.

Health
Smartmi Air Purifier E1

Smartmi Air Purifier E1 review

By Anna Gora published

The Smartmi Air Purifier E1 won several awards for its stylish design, but does its performance also deserve recognition?

Health
Medical illustration of a mitochondrion against a black background. The outline of the mitochondrion is in fluorescent purple and is undulating. Inside, there are fluorescent orange and yellow blobs and circles, as well as patches of fluorescent green and blue.

Malfunctioning mitochondria may drive Crohn's disease, early study hints

By Emily Cooke published

A new study in mice suggests that dysfunctional mitochondria may change the composition of the gut microbiome and thus drive Crohn's disease.

Viruses, Infections & Disease
A funnel-web spider on a white surface. The background is blurred.

Drug inspired by spider venom aims to reverse heart attack damage

By Emily Cooke published

A clinical trial will test whether a synthetic version of a spider venom molecule can reverse tissue damage after a heart attack.

Medicine & Drugs
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