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Medical

Coming soon: Battery-free pacemakers powered by the heart?

Pacemaker batteries eventually wear down, and have to be replaced every five to 12 years - so, some scientists have been working an alternative: battery-free pacemakers that in theory would never have to be replaced.

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Live healthier

Lifestyle »

E-cigarettes: Here are five things to know

E-cigarettes have become hugely popular in the past decade, but a rash of vaping-linked deaths and illnesses in the US is feeding caution about a product that's already banned in some places.

Allergy »

Ditch the itch: Researchers find new drug to fight hives

A new drug works by targeting an immune system antibody called immunoglobulin E, which is responsible for the allergic reaction that causes hives.