There are many scary claims about excess time on digital devices for children and teenagers. Here’s a guide to the real risks - and what to do about them

Tribalism can be toxic, yet we need more of it if we are to meet today’s global challenges, argues one anthropologist. His research reveals how to create a “teratribe”

Climate change means extreme heat will become the norm for millions across the world. We joined an experiment in the Saudi Arabian desert designed to find out what that means for our brains and bodies

Our arm of the Milky Way is filled with older, metal-rich stars. New research suggests these might provide the best conditions for life to form on their planets

See the circle of galaxy clusters and voids that surround us in this map of the nearby cosmos, extending 200 million light years in each direction

Some people find the scale of the universe existentially frightening, but here's why you should take it as a source of comfort

We may never know what lies beyond the boundaries of the observable universe, but the fabric of the cosmos can tell us whether the universe is infinite or not

Through science, we are striving for objective knowledge about the universe around us. But physicists increasingly believe achieving this will never be possible

Almost all the stars that will ever exist have already been born, and they have been around long enough for life to evolve on planets that orbit them

People don't realise just how bad our antibiotic resistance problem is, says Jeanne Marrazzo, the top infectious disease specialist in the US

Research has found the universe is remarkably similar in structure to the human brain. But does this mean the cosmos has a consciousness of its own?

Whether space and time are part of the universe or they emerge from quantum entanglement is one of the biggest questions in physics. And we are getting close to the truth

One hundred years ago, we discovered there were other galaxies beyond our own. Now, we might be on the verge of another discovery: that there are other universes

Taiwan’s first ever minister of digital affairs has transformed politics, using online platforms and AI to give power to the country’s citizens – with lessons for us all

Remote sensing, including lidar, reveals that the Amazon was once home to millions of people. The emerging picture of how they lived challenges ideas of human cultural evolution

It may soon be possible to vaccinate ourselves against the diseases of old age, keeping our body and brain healthier for longer

Your body is home to trillions of beneficial viruses crucial for a healthy microbiome. We may one day be able to tweak this "virome" to treat obesity and anxiety

Recent fossil finds suggest that big brains weren't an evolutionary asset to our ancestors but evolved by accident – and are likely to shrink again in the near future

Alex Lupsasca plans to extend Earth's largest telescope network beyond the atmosphere with a space-based dish. It could spot part of a black hole we've never seen before – and perhaps discover new physics

To even out the intermittent power supply from wind and solar, we need to build vast energy storage facilities. It turns out the best solution might be cheap, simple ideas like heating bricks and lifting weights

The lifestyle choices you make in middle age play a particularly important role in how your brain ages

When your gym class is online at home, you don't necessarily need to miss out on the benefits that come from exercising in-person with others

Better fitness in children is linked to better cognition and health in later life, but the majority in the US and UK don't get nearly enough. Here's what parents can do

There may be ways to work with your body’s natural daily and monthly cycles to get the maximum benefits from workouts and avoid injury

When we take a break from exercise, it can feel like we quickly go back to square one. But this isn't the case, and there are various ways to minimise the decline

If the idea of exercise is more attractive than the reality, you aren't alone. But there are ways to train your motivation and develop better habits

When it comes to exercise, more isn't necessarily better – and we're now discovering the ideal dose for better health

The slow-running movement, in which people meet for unhurried jogs, is booming – but don't be fooled into thinking that if there's no pain, there's no gain

Devices that let people with paralysis walk and talk are rapidly improving. Some see a future in which we alter memories and download skills – but major challenges remain

The first generation of stars changed the course of cosmic history. Now, thanks to the James Webb Space Telescope, we have a real chance of spotting them

Fossils found 50 and 100 years ago seemed to pinpoint the moment humanity emerged – but defining a human has turned out to be far trickier than we thought

There are secrets aplenty in a pot of honey – from information about bees' "micro-bee-ota" to DNA from the environment – that can help us fight food fraud and even monitor shifts in climate

More and more parents are choosing to only have one child. Here’s what the evidence says about how growing up without siblings affects their personality traits and well-being

The International Space Station will burn up and splash down into the Pacific sometime around 2030. What could possibly go wrong? And will we ever see anything like the ISS again?

From artificial retinas to ageing mice, here are five of the most promising results from research performed on the ISS – and what they might mean for humans on Earth and in space

New blood tests can reveal whether your immune system is fighting fit by looking at the balance of different immune cells, but there may be a simpler way of gauging your immune health

Conventional measures like blood pressure and body mass index only tell you so much. Testing your microbiome and metabolites, or even discovering your “immune grade”, can offer a clearer picture of your health

Evidence suggests that cynicism is bad for your health. Neuroscientist Jamil Zaki describes the three ways to conquer your inner cynic to boost your well-being

We instinctively know that relaxing feels good, but we are now figuring out what it does to the brain and uncovering the best ways to unwind to maximise its benefits

There are several evidence-backed ways of calming an anxious mind – from eating specific foods to adding certain exercises to your routine

What anxiety actually is has puzzled scientists for decades. Now we are starting to figure out how it may arise from miscommunication between the body and the brain

For decades, the oceans have absorbed much of the excess heat caused by greenhouse gases. The latest observations suggest they are reaching their limits, so how worried should we be?

Up to 100,000 extraordinary species, from spiders and beetles to salamanders and fish, live in subterranean caves and cracks. They aren’t as safe down there as we thought

Past observations have indicated that the icy moon of Jupiter has a vast subsurface ocean. Launching in October, NASA’s Europa Clipper will go there in search of evidence that it could support life

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

Promising new vaccines are designed to be given to patients at risk of developing Alzheimer's disease. If they perform well in clinical trials, they have the potential to one day rid society of dementia

Many fear that voters are being manipulated by political campaigns that use Facebook ads, TikTok and YouTube videos, but research reveals a more surprising story

Advances in generative AI mean fake images, videos, audio and bots are now everywhere. But studies have revealed the best ways to tell if something is real

Drugs like Ozempic and Wegovy have unexpected effects on the brain, opening up potential new ways to treat depression, anxiety, addiction and Alzheimer’s

With its particles in two places at once, quantum theory strains our common sense notions of how the universe should work. But one group of physicists says we can get reality back if we just redefine its foundations