Marianne Guenot

Marianne Guenot

Live Science Contributor

Marianne is a freelance science journalist specializing in health, space, and tech. She particularly likes writing about obesity, neurology, and infectious diseases, but also loves digging into the business of science and tech. Marianne was previously a news editor at The Lancet and Nature Medicine and the U.K. science reporter for Business Insider. Before becoming a writer, Marianne was a scientist studying how the body fights infections from malaria parasites and gut bacteria.

Articles by: Marianne Guenot

Woman holds her belly skin while applying insulin shot by an injection

Ozempic-like drugs may treat alcohol addiction, study finds

By Marianne Guenot published

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.

A microscope image of fat cells

Fat cells have a 'memory' of obesity, study finds

By Marianne Guenot published

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.

A 3D rendering of a neuron

'Tour de force' study may explain why trauma can lead to PTSD

By Marianne Guenot published

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.