Extended napping could cause cognitive decline in older people

Image credit: Silver Santé Study

Regular naps may be one of the privileges of retirement but research is pointing to napping as a contributor to cognitive decline. Scientists are now testing the idea that older people should instead meditate or learn a language to preserve brainpower and wellbeing. Sleep serves a crucial function in brain health and maintenance, but regular, … Read more

Scientists can predict rare leukaemia 8 years before symptoms begin

Image Credit: National Cancer Institute

A study of more than half a million blood samples has allowed scientists to pinpoint the risk factors for a rare type of leukaemia, enabling them to predict if someone will develop the disease eight years before symptoms appear and opening the door to preventative treatments. Acute myeloid leukaemia (AML) is a rare cancer usually … Read more

System to rid space station of astronaut exhalations inspires Earth-based CO2 removal

Image credit - NASA/Mark Garcia

When astronauts aboard the International Space Station (ISS) exhale carbon dioxide (CO2), it’s removed from the air and pumped into space. Could an Earth-based version help remove greenhouse gas emissions from our atmosphere? In order to limit global warming to 1.5˚C above pre-industrial levels and avoid some of the worse impacts of climate change, it … Read more

Nature or nurture: How do we end child obesity?

An estimated 224 million children worldwide are overweight or obese.

A smartphone app that challenges children to engage in healthy behaviour, and genetic studies that investigate risk factors for obesity, are taking a nature and nurture approach to tackling one of the biggest epidemics of our time – childhood obesity. Around 224 million children around the world are overweight, making obesity one of the biggest public health … Read more

Food scraps to become dairy and meat substitutes

Image credit - Taz, licensed under CC BY 2.0

Finicky eating habits and wasteful processes have led to a system that discards millions of tonnes of food each year, but new approaches are salvaging the scraps we never see to make products that people will want to eat. Many people worry about how to feed the world’s population in 2050, when it is expected to reach 9.8 … Read more

Studies linking green space to lower suicide risk are ‘just a snapshot’

When assessing the link between surroundings and mental health, researchers need to look at people's entire lives, says Dr Helbich.

Research suggests that where we live can affect our mental health but Dr MarcoHelbich, an urban geographer at Utrecht University in the Netherlands, believes these studies only offer a limited snapshot of our lives. Using a smartphone app and register data, he is tracking people through their daily routines and their residential history to see … Read more