9 Unbelievable Things Your Body Is Doing Everyday That Sound Next To Impossible

Stomach acid can dissolve iron

Our stomach contains hydrochloric acid. Having heated the stomach acid up to 37°С, scientists placed iron blades and an alkaline battery in it. After 24 hours, the blade lost 63% of its mass, while the battery withstood the assault for more than a day. To sustain such loads, our body has to produce new gastric cells before the acid destroys the old ones.