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International efforts should prioritise equitable access to vaccines. Immanuel A.Afolabi/Majority World/Universal Images Group via Getty Images

The impact of COVID‑19 has been lower in Africa. We explore the reasons

Alex Ezeh, Drexel University; Michael Silverman, Western University; Saverio Stranges, Western University, and Janica Adams

The emergence of variants of concern with increased potential for transmission and more severe disease in the younger population could make Africa more susceptible to a severe COVID-19 epidemic.
Au lieu de prendre des vitamines et autres suppléments nutritionnels afin de vieillir en bonne santé, mangez des légumes, dormez bien et faites de l'exercice. Shutterstock

Au lieu de prendre des vitamines, dormez et mangez mieux!

Saverio Stranges, Western University

Au lieu de prendre des vitamines et autres suppléments nutritionnels afin de vieillir en bonne santé, mangez des légumes, dormez bien et faites de l'exercice.
One recent study revealed no evidence that selenium supplements help prevent diabetes, even in geographical areas where there are relatively low amounts of selenium in the natural diet. (Shutterstock)

Why you should stop buying vitamins and get more sleep instead

Saverio Stranges, Western University

Most vitamins and other nutritional supplements are unlikely to prevent chronic disease. Invest in good quality foods, sleep and exercise instead.

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