Seaweed strandings cause a stink – here’s why they harm your health

Workers remove massive accumulations of _Sargassum_ seaweed from a Caribbean beach in the Riviera Maya near Cancun, Mexico, in June 2025. elena.tres/Shutterstock Seaweed piling up on a beach might look harmless, but as quantities begin to rot, they can release gases that are toxic to people. In recent years, two people and several animals (including […]

Renoir and Love is a wonderful celebration of the fleeting joys of life

Pierre-Auguste Renoir (1841 to 1919) is popularly misunderstood as a slightly dodgy painter of kitsch nudes. Renoir and Love at the National Gallery in London sets the record straight. As Chiara di Stefano, co-curator for the exhibition admits, she grew up “hating Renoir somehow”. She says it can “be troubling for some, especially women viewers, […]

Substance-use disorders linked to sixfold higher risk of suicidal behaviour – new study

Support from family members and healthcare professionals can be important for people with substance-use disorders who may also be at increased risk of suicidal behaviour. Pormezz/Shutterstock In my work as an addiction psychiatrist, I meet people whose lives have been severely affected by alcohol or drug use, often alongside other forms of mental distress. Some […]

What your eyes could reveal about your heart health

AYO Production/Shutterstock More than 2,000 years ago, the Greek mathematician Euclid began his treatise Optics with an assumption that now sounds peculiar: visual rays travelled out from the eye towards the objects we see. We now know that vision works the other way around. But modern imaging has given the old idea an unexpected twist: […]

Lab-grown ‘mini-bladder’ helps explain why urinary tract infections keep coming back

DimaBerlin/Shutterstock For many people, a urinary tract infection (UTI) doesn’t really end when the antibiotics run out. The burning and constant trips to the toilet fade, then return weeks or months later. UTIs affect more than 400 million people worldwide each year, according to a global analysis of UTI incidence. More than half of adult […]