Marianne Guenot

A man who should have developed early-onset Alzheimer's disease due to a genetic mutation is still symptom-free in his 70s. Scientists are trying to understand why.

People with aphantasia still generate brain activity when attempting to visualize, but that image may be getting lost in translation, a new study suggests.

Fathers exposed to high stress in childhood had different epigenetic markers that may affect their offspring, though more research is needed.

A study using Swedish patient data found anti-obesity drugs were linked with fewer hospitalizations related to alcohol use, adding to a body of work suggesting these drugs could potentially be used to manage addiction.

Most people who lose weight through dieting will see it creep back up, leading to a cycle of "yo-yo dieting" that's hard on the body. A new study suggests fat cells keep a memory of previous weight gain, which may help to explain why this happens.

Stress can shape how memories are formed, a study in mice suggests. The findings could point the way to future treatments for PTSD and anxiety.