Cardiology

New device could allow your heartbeat to power pacemaker

An experimental device converted energy from a beating heart to provide enough electricity to power a pacemaker, in a study presented at the American Heart Association's Scientific Sessions 2012.

Health

Use of stun guns increases injuries

The police use of stun guns increases the risk of injuries for those on the receiving end, but tends to increase officer safety, according to the most comprehensive study of such devices to date.

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