Obesity drugs aren’t always forever. What happens when you quit?
Many researchers think that Wegovy and Ozempic should be taken for life, but myriad factors can force people off them.
This fMRI technique promised to transform brain research — why can no one replicate it?
The DIANA technique sparked excitement from neuroscientists. But two new papers have cast doubt over the results.
Is ChatGPT making scientists hyper-productive? The highs and lows of using AI
Large language models are transforming scientific writing and publishing. But the productivity boost that these tools bring could come with a downside.
How cancer hijacks the nervous system to grow and spread
A new wave of research is unpicking the relationship between cancer and neurons — and looking for ways to stop the crosstalk.
This group of bizarre gut microbes is unexpectedly complex
Protists’ food preferences shape their interactions with bacteria and affect host immunity.
‘ChatGPT detector’ catches AI-generated papers with unprecedented accuracy
Tool based on machine learning uses features of writing style to distinguish between human and AI authors.
Inflammation in severe COVID linked to bad fungal microbiome
An overabundant ‘mycobiota’ in the gut might be involved in triggering harmful immune responses.
Why BMI is flawed — and how to redefine obesity
The main diagnostic test for obesity — the body mass index — accounts for only height and weight, leaving out a slew of factors that influence body fat and health.
Four key questions on the new wave of anti-obesity drugs
Scientists want to know who will benefit most, what the long-term effects might be and whether the treatments will change views on obesity.
The ‘breakthrough’ obesity drugs that have stunned researchers
A class of drugs that quash hunger have shown striking results in trials and in practice. But can they help all people with obesity — and conquer weight stigma?
Climate-change content shrinks in US university textbooks
Sections on climate change have gotten shorter and moved farther back in biology textbooks since the 2000s.
Are we in the Anthropocene? Geologists could define new epoch for Earth
Researchers have zeroed in on nine sites that could describe a new geological time, marked by pollution and other signs of human activity.
Prehistoric carvings are oldest known story sequence
Two carved panels discovered in what is now Turkey illustrate a tale involving leopards and a bull.
Heralded Alzheimer’s drug works — but safety concerns loom
Eisai and Biogen share clinical trial data confirming that lecanemab slows mental decline, amid reports of potentially related deaths.
Scientists say harassment in the Antarctic must stop — but US plan falls short
National Science Foundation pledges changes to address sexual harassment and assault in its Antarctic research programme.
US mid-term elections: 3 ways science is on the line
Researchers project changes ahead for federal science if Republicans take control of either chamber of Congress.
Families on three continents inherited their epilepsy from a single person
A genetic variant connected to a rare form of inherited epilepsy arose in an individual who lived some 800 years ago.
The first Indigenous female surgeon in Canada is battling for health justice
Nadine Caron was appalled to hear racist views about Indigenous health from a project adviser. So she’s fighting to change perceptions.