Medical research

Why thinking hard makes you tired

It's no surprise that hard physical labor wears you out, but what about hard mental labor? Sitting around thinking hard for hours makes one feel worn out, too. Now, researchers have new evidence to explain why this is, and, ...

Health

Analysis finds government websites downplay PFAS health risks

State and federal public health agencies often understate the scientific evidence surrounding the toxicity of per- and polyfluoroalkyl substances (PFAS) in their public communications, according to an analysis published today ...

Medications

Common supplement SAMe could be toxic, scientists warn

A dietary supplement sold over the counter could be toxic and should not be used until it is shown to be safe, biologists from the Universities of Manchester and Kyoto have discovered.

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