How Do Magnets Lose Their Strength?

A magnet is like a crowd of tiny arrows all pointing the same way. This alignment creates its power. But heat acts like a wiggly friend trying to knock those arrows over. Over many years, the random wiggles make some arrows turn around, weakening the overall pull.

Warmth makes atoms move faster. When they jiggle too much, they disrupt the magnet's order. This is why leaving a magnet in a hot car speeds up its fading.

Other magnets or heavy metal objects nearby can also pull the arrows out of line. If you stack two fridge magnets with the wrong sides facing each other for months, they might lose some strength permanently.