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Several thousand protestors opposed to the COVID-19 vaccine march through the streets of midtown Manhattan in New York on Sept. 18, 2021. Andrew Lichtenstein/Corbis News via Getty Images

Can healthy people who eat right and exercise skip the COVID-19 vaccine? A research scientist and fitness enthusiast explains why the answer is no

A growing body of research shows that nutrition, sleep, exercise and a host of other lifestyle choices can help optimize the immune system. But they are no substitute for life-saving vaccines.
Metformin was originally developed from natural compounds found in the plant known as French lilac. Vlad Proklov/Flickr

Weekly Dose: metformin, the diabetes drug developed from French lilac

Metformin has been used to treat diabetes since the late 1950s. It is now on the World Health Organisation’s List of Essential Medicines needed for a basic health care system.

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