A form of cognitive "speed training" that substantially cuts dementia risk has now been shown to alter levels of beta-amyloid in men's brains. www.newscientist.com/article/2578...

Human eggs that contain too many or too few chromosomes are a major cause of miscarriage and IVF failure. Exciting to see that giving such eggs a single injection can substantially reduce the problem. www.newscientist.com/article/2533...

Super exciting IVF breakthrough announced at the @eshre.bsky.social conference: 5 healthy lambs have been born from highly immature sheep eggs, suggesting a way to improve standard IVF, which currently relies on mature eggs. www.newscientist.com/article/2533...

CAR T-cell therapy, where immune cells are engineered to kill cancer, can do wonders for some people with the condition but it's too expensive to be available everywhere. Now a 3D printed approach could allow more people to access it. www.newscientist.com/article/2528...

We're increasingly prioritising our own needs over those of the wider community. So how is this affecting our love lives? www.newscientist.com/article/2528...

This is super cool. For the first time ever, we have pinpointed drugs that seem to boost our brain's waste disposal system, helping the it clear out proteins linked to Alzheimer's disease. It opens up a whole new avenue for therapies. www.newscientist.com/article/2520...

For people with peanut allergies, microbes in the gut and mouth may influence the severity of allergic reactions. www.newscientist.com/article/2517...

The key to better sleep could be in what you eat. A new study suggests that chomping on more fibre could help you snooze more deeply. www.newscientist.com/article/2517...

Scientists claim to have stumbled across a hidden network of vessels in the brain, a discovery that could transform our understanding of neurodegenerative conditions - but further research is needed to confirm the findings. www.newscientist.com/article/2515...

Stool transplants seem to boost the effectiveness of cancer therapies against kidney and lung cancer, by altering the gut microbiome. Cool to see a couple of studies building on evidence that this approach can work for skin cancer. www.newscientist.com/article/2513...

Cancer therapy has, understandably, long focused on helping people live longer, but tumours can also be painful. Now a drug seems to both improve survival rates and relieve bone tumour-related pain, suggesting it could offer a more comfortable form of therapy. www.newscientist.com/article/2513...

If you're not feeling up for a social plan, you may find yourself wondering: to cancel or not to cancel? Well, it turns out that people may be more accepting of cancellations than we assume... www.newscientist.com/article/2511...

A bumper pod this week: 💥Rutger Bregman on moral ambition, veganism, the AI revolution 💥Evolutionary explanation for gay sex in primates 💥Small tweaks to increase lifespan 💥Wild proposal to drawdown carbon www.youtube.com/watch?v=iPke...

If you're looking for ways to boost your health this year, there's some good news: even small tweaks to your sleep, diet and exercise have been linked to a longer life. www.newscientist.com/article/2511...

You may be familiar with the mood-boost that comes with exercise - now a major review confirms that even light physical activity, like walking, can ease depression symptoms as effectively as talking therapies or antidepressants. www.newscientist.com/article/2510...

People who stop taking obesity drugs tend to regain the weight they've lost within 1.7 years, emphasising how obesity is a chronic condition that requires long-term treatment. www.newscientist.com/article/2510...

This year, we’ve seen creatures of all shapes and sizes stealing the spotlight with their adorably cute, and bizarre, behaviours…to be greatly enjoyed! www.newscientist.com/article/2507...

It's a great week for the fight against drug-resistant gonorrhoea, which is rising globally: a new antibiotic effectively cleared the infection in a late-stage trial - FDA may approve on Monday. Plus FDA expanded use of another antibiotic to treat gonorrhoea. www.newscientist.com/article/2508...

"We have adolescent brains into our 30s" is a great headline but it's also not true. @rowhoop.bsky.social, @carissacwwong.bsky.social and I unpicked all the interesting details from that big news-making white matter study on the World, The Universe And Us youtu.be/HoQgW-KKbr0?...

A man has become the seventh person to be free of HIV after receiving a stem cell transplant to treat blood cancer. Crucially, he received stem cells that were not resistant to the virus, prompting scientists to rethink what's necessary for an HIV cure. www.newscientist.com/article/2506...

Daily steroid pills are often used for severe asthma but they raise the risk of several conditions including infections, diabetes, bone problems...great to see a new trial supporting the idea that a monthly antibody injection can offer a safer alternative. www.newscientist.com/article/2506...

A daily pill could soon offer a more convenient, and potentially cheaper, alternative to injections like Wegovy and Ozempic, which enable weight loss and improve blood sugar levels. www.newscientist.com/article/2505...

Pulsing ultrasound waves through the brain seems to help clear dead blood cells from the organ after a type of stroke, improving survival. The approach could potentially help to clear toxic proteins linked to brain conditions like Alzheimer's disease. www.newscientist.com/article/2503...

A magnetic tool for removing kidney stones that's "sort of like using a stick to fish out a snot full of stone fragments" could mean fewer surgeries, and less pain, for people with the condition. www.newscientist.com/article/2502...

It can be hard to focus after a bad night's sleep...Now we may know why. It turns out that momentary lapses in attention may occur because the brain's trying to catch up with clearing out waste - something it usually does while we snooze. www.newscientist.com/article/2501...

Our bodies contain a ghostly web of thread-like vessels and bean-shaped nodes, called the lymphatic system. My latest cover story looks at how it could be a secret ingredient in treating some major health conditions from Alzheimer's disease to cancer. www.newscientist.com/article/2499...

Awesome story from @carissacwwong.bsky.social www.newscientist.com/article/2499...

A man with paralysis used his thoughts to move and feel sensations through another person's hand, thanks to a brain implant - the approach could be used to help people rehabilitate from spinal cord injury. www.newscientist.com/article/2499...

A pig's liver has been transplanted into a living person for the first time, helping us better understand how animal organs can prolong, or even save, lives. www.newscientist.com/article/2499...

Regulatory cells in our blood play a key role in preventing our immune systems attacking us - and the discovery of these cells by Mary Brunkow, Fred Ramsdell and Shimon Sakaguchi was today rewarded with a Nobel prize 🧪 www.newscientist.com/article/2498...

The vast majority of long covid research has ignored how the condition may affect the menstrual cycle. Now a study suggests it may make periods longer and heavier. www.newscientist.com/article/2496...

Some of our immune cells fend off infections by undergoing an inflammatory form of cell death, but this may come at the cost of chronic inflammation later in life. www.newscientist.com/article/2496...

We’re spending more time on the loo 🚽because of smartphones 📱 - and that substantially increases the risk of getting piles, according to a small study 🧪 www.newscientist.com/article/2494...

Could psychedelics treat anxiety? A landmark trial found a single dose of the mind-altering drug LSD seems to reduce anxiety without lasting side effects. www.newscientist.com/article/2495...

An intriguing study suggests the hepatitis B vaccine may reduce the risk of diabetes, and not just by preventing infections. www.newscientist.com/article/2494...

Mouth-watering news...We've identified microbes that produce fine flavours in chocolate, a discovery that could lead to entirely new kinds of the delectable treat. www.newscientist.com/article/2492...

We already use cancer-killing viruses to treat a few types of tumour. But cloaking the viruses in bacteria could extend this approach to a wider range of cancers. www.newscientist.com/article/2492...

Some respiratory viruses may activate the growth of dormant cancer cells that have spread to the lungs from elsewhere in the body. www.newscientist.com/article/2490...

Some people with irritable bowel syndrome point to gluten as a trigger. But new findings suggest that the protein, found in grains like wheat and barley, may not actually worsen symptoms in many cases. www.newscientist.com/article/2489...

Do we grow new brain cells in adulthood? Yes, according to evidence that provides a "missing link" in one of neuroscience's biggest controversies. www.newscientist.com/article/2486...

A single dose of a long-lasting antiviral has shown promise in protecting against all flu strains for months - and it could even work better than vaccines in some people. www.newscientist.com/article/2486...

Cancer cells steal mitochondria, energy-generating parts, from nerve cells. This theft seems to help cancer cells spread to distant sites - and targeting it could bring new treatments against the deadliest tumours. www.newscientist.com/article/2485...

It's absolutely wild that US government policy is that cows should be protected against bird flu, but people shouldn't - really interesting piece from @gracewade.bsky.social www.newscientist.com/article/2484...

Loved @davidarobson.bsky.social's latest column for @newscientist.com. I only started feeling comfortable in a swimsuit when I began appreciating my body for what it could do rather than how it looked. I am a big fan of the body-neutrality movement! www.newscientist.com/article/mg26...

You're probably familiar with the pain and peeling that comes with spending too much time in the sun, but what exactly is sunburn (hint: inflammation)? How can we treat it? And what are the long-term dangers? www.newscientist.com/article/2485...

It's costly and laborious to make the cells used in CAR T-cell therapy, a transformative treatment for some blood cancers. But a way of generating the therapy inside, rather than outside, the body could cut costs and make the treatment more accessible. www.newscientist.com/article/2485...

The herpes virus that causes cold sores starts reshaping our genome within an hour of infecting cells - targeting this process could help treat severe cases, or even lead to treatments against other viruses. Read @newscientist.com. www.newscientist.com/article/2484...

Tiny balls of lab-grown blood vessels restored blood flow to injured tissue in mice, suggesting the approach could help to minimise tissue damage that occurs after accidents or blood clots. www.newscientist.com/article/2484...

In my cover story for @newscientist.com this week, I dug into the fascinating new field of "cancer neuroscience". Scientists have found that tumours hack the nervous system to fuel their own growth - and disrupting this interplay could bring new treatments. www.newscientist.com/article/2482...

Gently massaging the face and neck with a device boosted the brain’s waste disposal system in mice, suggesting it could reduce the severity of conditions like Alzheimer’s disease. Read @newscientist.com. www.newscientist.com/article/2483...