4+ week, 2+ day ago   (309+ words) Ageing is the biggest known risk factor for dementia, but the reason is still not fully understood. A new NIH-funded study points to one possible mechanism: the brain’s immune environment may change sharply in midlife. Researchers studied post-mortem hippocampal tissue…...

1+ mon, 2+ week ago   (380+ words) Sugar exposure early in life may leave a longer mark on brain health than we once thought. A new study used a rare historical event to examine this: sugar rationing in the UK during and after the Second World War....

1+ mon, 3+ week ago   (353+ words) For years, the health message has been simple: sit less. A new study suggests that may not be specific enough. Researchers looked at about 1,700 adults who were around 53 years old when they first reported their television habits. More than 20 years…...

1+ mon, 3+ week ago   (334+ words) Poor sleep is not the same biological problem at every age. A new brain imaging study suggests the poorly slept young brain and the poorly slept older brain may look quite different. Researchers analysed brain scans from more than 1,300 people…...

3+ mon, 2+ week ago   (247+ words) Most people know caffeine can make them feel more alert after a bad night. A new study suggests it may also help restore a specific type of memory affected by sleep loss, at least in mice. Researchers focused on social…...

4+ mon, 4+ week ago   (260+ words) These mice accumulate tau and beta-amyloid, develop synaptic damage and show memory problems. After 45 days of treatment, the mice performed better on behavioural testing. They also showed lower anxiety-like behaviour and signs of restored synaptic structure. That alone would have…...

5+ mon, 15+ hour ago   (296+ words) Type 1 diabetes is usually described as an autoimmune disease in which the immune system attacks insulin-producing cells in the pancreas. That is true, but a new study suggests the story may be broader than that. Researchers found that genetic variants…...

5+ mon, 1+ week ago   (191+ words) Researchers enrolled 90 healthy older adults and split them into three groups. One group received no intervention. One group received placebo pills but was told they contained active ingredients. The third group was openly told the pills were inert, but that…...

6+ mon, 2+ week ago   (154+ words) PM2.5 refers to fine particulate matter small enough to be inhaled deep into the lungs and enter the bloodstream. It is produced by combustion sources like vehicle emissions, industry, and wildfires. Because it can travel through the body, PM2.5 has been linked…...

7+ mon, 1+ week ago   (645+ words) Dementia risk rises strongly with age, but lifestyle factors influence how that risk plays out. Diet is one of the few levers people can adjust across decades and carbohydrates make up a large portion of daily energy intake in many…...