Fridge magnets and decorative jewelry could be a killer if you have a weak heart, experts warn. A strong type of magnet used in many new commercial products can interfere with pacemakers and implanted heart devices with deadly consequences.

Close contact – within about an inch – with a neodymium magnet is enough to destabilize these life-saving heart devices.

[Read](http://news.bbc.co.uk/2/hi/health/6160731.stm “Read the Story”) (BBC)

I guess the same people probably should not have subwoofers in their cars.