DNA from mitochondria, the energy powerhouses inside cells, sometimes gets added to our genome – and the number of these mutations in the brain could be linked to ageing

Wastewater is a major reservoir for antibiotic resistance genes, but modified bacteria can chop up this DNA before the dangerous microbes reach people

When the fever, pains and pus-filled lesions of an mpox infection strike, how dangerous is it and how can it be treated?

A new test spots Lyme disease faster than the existing go-to approach and, if approved, could reduce the risk of complications

Amid rising cases of mpox in Central Africa, it is important to uncover whether this virus causes symptoms even after the infection has cleared

Surrounding ourselves with greenery can do wonders for our physical and mental wellbeing. Kathy Willis reveals just what kinds of plants are best for our brains and bodies, and why

Despite the limitations of Alzheimer's drugs like lecanemab, this new class of treatments and a group of experimental vaccines are paving the way to a world without dementia

A network of neurons in the brain seems to be larger in people with depression, which could change how we think about the condition's causes

A band that measures the acidity of sweat could flag if athletes or manual workers are overexerting themselves

Narratives around addiction often reduce it to a series of poor choices, lack of values and weakness. This has real-world consequences, warns Anna Wolfe

An intricate atlas of the inner lining of the uterus could help researchers better understand conditions like endometriosis, infertility and abnormal menstruation

Rubbing a common yellow food dye onto a mouse's skin turns it temporarily transparent, so we can monitor its insides without harming the animal

Saline drops and sprays have already been linked to reduced cold symptoms in adults and now a study suggests they also work in children

They fight invaders, clear debris and tend neural connections, but sometimes microglia go rogue. Preventing this malfunction may offer new treatments for brain conditions including Alzheimer's

Medical clowns, who play with children in hospitals, may help them be discharged sooner by reducing their heart rates

Levels of certain cells, fatty molecules and proteins in the blood are different in people with chronic fatigue syndrome than in those without it, which could help doctors spot the condition sooner

ALS, the most common form of motor neuron disease, can take a long time to diagnose, but a blood test could help doctors spot the condition sooner

Loneliness was long thought to cause health conditions ranging from diabetes to cardiovascular disease, but new research paints a more nuanced picture

A woman's brain was scanned throughout her pregnancy, adding to the growing body of evidence that dramatic remodelling takes place in preparation for motherhood

The number of people worldwide directly killed by antibiotic resistance will rise to 1.9 million a year by 2050, according to the most comprehensive study so far

A meta-analysis of 137 clinical trials finds triptan drugs are among the most effective for treating migraines, while newer ditan and gepant drugs were rated less highly

Modern life disrupts the circadian rhythms controlling our biology – increasing our risk of developing conditions ranging from diabetes to dementia. Lynne Peeples's new book The Inner Clock explores and offers solutions

Interacting with animals seems to provide emotional support to young people with a serious illness, even when the contact is via letters and not face to face

Dopamine was long thought to play a part in the placebo effect for pain relief, but a new study is questioning its true role

A flurry of studies has found microplastics in nearly every organ in the human body, from the brain to the testicles. But very few have revealed whether these tiny bits of plastic impact our health

Our immune cells change a lot as the decades progress, which could explain why we become more susceptible to certain conditions

A beam of radioactive carbon ions has been used to destroy cancer cells in mice, demonstrating a therapy that may cause less collateral damage than current techniques

The latest research on caffeine reveals why coffee and decaf can be so good for your health, but energy drinks can be lethal

A new diet based on research into the body's ageing process suggests you can increase your life expectancy by up to 20 years by changing what, when and how much you eat

A better understanding of what happens to our bodies when we get fitter can unlock ways to speed up the journey – and it might be simpler than you think

People report greater life satisfaction six months after starting Parkrun events, which could partly be due to the supportive environment

Male pattern baldness could soon be a thing of the past, with new hair loss treatments beginning to show tantalising results

The epilepsy medication sodium valproate is linked to developmental problems in fetuses, but lab studies may now have found a way to prevent this

Snoring is often viewed as harmless, at least to the snorer, but we are now uncovering its potentially serious effects on cardiovascular health. And finding ways to stop is surprisingly challenging

For years, it seemed MDMA-assisted therapy would revolutionise PTSD treatment. But poor trial design and alleged misconduct ultimately stopped the treatment from receiving government approval

While the 20th century saw rapid rises in average life expectancy at birth, more recent years have seen a slowdown, suggesting we may be reaching the limit of human lifespan

Neuroscientists have been surprised to discover that the human brain is teeming with microbes, and we are beginning to suspect they could play a role in neurodegenerative disorders like Alzheimer's

More than 600 types of viruses that infect bacteria have been found living on toothbrushes and showerheads – and many of them have never been seen before

How well do we look after people who are seriously sick? Astonishingly, research is scant – which makes Neil Vickers and Derek Bolton's ambitious new book, Being Ill, very welcome

New technologies will radically change the experience of living with and caring for someone with Alzheimer's, says Professor Fiona Carragher, chief policy and research officer at Alzheimer's Society, UK

A vaccination campaign targeting ducks, the farm birds most at risk of getting and spreading bird flu, succeeded in greatly reducing outbreaks of the virus on poultry farms in France

A chemical produced by gut bacteria could be the basis for a non-invasive test for endometriosis – and mouse experiments suggest it might also help treat the condition

Systems that can harvest water from moisture in the atmosphere could offer a valuable water source in the wake of disasters

People who went from using social media for at least 2 hours a day to just 30 minutes a day reported no improvement to their sleep or emotional well-being

Cases of prostate cancer are surging alarmingly around the world. Thankfully, we are developing more accurate tests that can catch the condition early

People who listen to music after having surgery report lower levels of pain and require less morphine than those who don't

Rats perform better on memory tests when certain brainwave-producing neurons are stimulated while they sleep. If we can boost these brainwaves in people, it could help treat memory impairments in those with dementia

Everything you need to know about Rwanda's outbreak of Marburg virus, which has been described as one of the deadliest human pathogens

As more of us take up vaping and concerns rise about the long-term effects, we now have enough data to get a grip on the health impact – and how it compares to smoking

Weaving tales of magical fruit and vegetables into your children's stories may encourage them to eat healthy snacks