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, ...

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.

Health

Reusable plastic bottles shown to release hundreds of chemicals

Researchers at the University of Copenhagen have found several hundred different chemical substances in tap water stored in reusable plastic bottles. Several of these substances are potentially harmful to human health. There ...

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