I dont know if this helps but I have a powerful, 3"x6"x1" neodymium magnet that I've been laying on, under an sleep number mattress, for around 6 months or so (south side up) in a crazy attempt to shake an attachment that wont budge. While laying on the bed it cant be more than 2 or three inches away from my abdomen . To make a long story short I've pretty much forgotten all about the damn thing. It hasnt done much of anything that I can tell, But it will spin a compass from 8' away lol. the only effect I've noticed is if you change polarities (flip it) you will get a decent energy spike when in seconds, but Ive done tons of energy work over the years and a partial kundalini . Not much effect elsewhere.