A study of 4.2 million people found that exercise prevents dementia, but only the kind you choose to do. Physical activity at work was linked to 20% higher dementia risk.
Medical Research & Innovations · · 9 min read

A study of 4.2 million people found that exercise prevents dementia, but only the kind you choose to do. Physical activity at work was linked to 20% higher dementia risk.

Exercise has become one of public health’s most confident recommendations for brain health. The evidence base is large and consistent: people who are physically active in their leisure time develop…

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Sunday, September 20, 2026 Published today: 1 articles
Researchers discovered that some gut bacterial populations spread between people and across continents within decades. The finding suggests your gut microbiome is partly shaped by whoever you spend time with.

Researchers discovered that some gut bacterial populations spread between people and across continents within decades. The finding suggests your gut microbiome is partly shaped by whoever you spend time with.

The human gut microbiome has been studied intensively for two decades, and a broad consensus has emerged about what shapes it. Diet is the dominant factor: what you eat determines…

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