Illustration of a woman with a face mask

Yes, masks reduce the risk of spreading COVID, despite a review saying they don’t

An updated Cochrane Review published last week is the latest to suggest face masks don’t work in the community.

However there are problems with the review’s methodology and its underpinning assumptions about transmission. Well-designed real-world studies during the pandemic showed any mask reduces the risk of COVID transmission by 50–80%, with the highest protection offered by N95 respirators.

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Marriage provides health benefits – and here’s why

One theory that seeks to explain the link between marriage and health is the act of self-selection. Simply put, people who are wealthier and healthier than average are more likely not only to get married but also to find a partner who is wealthier and healthier than average. While this may be part of the story, marriage also provides partners with a sense of belonging, more opportunities for social engagement and reduced feelings of loneliness. This social integration, or the extent to which people participate in social relationships and activities, can greatly influence health – from reducing the risk of hypertension and heart disease to lowering one’s risk of death or suicide.

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Sitting all day is terrible for your health – now, a new study finds a relatively easy way to counteract it

To reduce the harmful health effects of sitting, take a five-minute light walk every half-hour. We found that a five-minute light walk every half-hour was the only strategy that reduced blood sugar levels substantially compared with sitting all day. In particular, five-minute walks every half-hour reduced the blood sugar spike after eating by almost 60%. That strategy reduced blood pressure by four to five points compared with sitting all day. But shorter and less frequent walks improved blood pressure too. Even just a one-minute light walk every hour reduced blood pressure by five points.

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