4. The acid in your stomach is strong enough to dissolve razorblades!
Image Source: Hope Africa
You might be thinking, if the hydrochloric acid in your stomach is so strong, why doesn’t it destroy the stomach lining? The reason is because the cells of your stomach wall renew themselves so frequently that you get a new stomach lining every 3 to 4 days. It’s a good job too, otherwise you’d be in trouble!