Cannabis and tobacco use linked to smaller brain volume

Cannabis and tobacco—whether used on their own or together—can affect the brain's structure. A recent study involving systematic review and meta-analysis of more than 103 studies found that both substances are linked to reduced ...

Bile acid and steroid signatures tied to extreme longevity

Centenarians often live to 100+ due to a combination of protective genetic factors, which account for up to 50%, and healthy lifestyles, such as plant-forward diets, regular, natural movement and strong social connections. ...

The new cholesterol guideline: What to know

For the first time since 2018, a clinical guideline from the American College of Cardiology and the American Heart Association for screening and managing blood cholesterol levels has been updated and jointly published in ...

What you should know about the new COVID-19 'Cicada' variant

A new COVID-19 variant that some have dubbed the "Cicada" variant is quietly spreading across the globe, carrying an unusually high number of mutations that could help it slip past existing immunity, public health experts ...

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