🍌 I love eating bananas. Bananas are radioactive. Every banana contains potassium-40, an isotope that's quietly decayin…

🍌 I love eating bananas. Bananas are radioactive.

Every banana contains potassium-40, an isotope that's quietly decaying right inside your body. Physicists even came up with a semi-joking unit — the "banana equivalent dose" (BED).

They sometimes actually use it to explain radiation in simple terms.

Your body contains about 140 g of potassium — some of it is potassium-40. Which means you are slightly radioactive. Always.

When you hug someone, you're literally exchanging tiny doses of radiation.

The dose from a banana is tens of thousands of times smaller than anything that could cause harm.

So — eat your bananas, glow a little, for us it's normal.

@science