Noel Edmonds discusses a device on The Late Later Show in Ireland with Ryan Tubridy which sends electromagnetic pulses through your body.

For more information, this technique is called PEMF aka Magnetic Pulsing. The best and most affordable way to do this in your own home is with a device like the EarthPulse which is available from Electro Biotics:
https://www.electrobiotics.com/Magnetic-Pulsing