Bodies can do some really amazing things.

If you think about it too long, it can seem so crazy that you can stand, walk, think, and get through a day in one of these bags of bones. That’s what makes human biology so incredible. There are reactions going on in our bodies every second, even right now while you’re reading this article. Use those synapses to check out these wild facts.

1. Forget retina scans and fingerprints. Your tongue-print is absolutely unique to you.

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2. If you gathered up all of the hair strands on your head, they could support the weight of 12 tons. That’s roughly two elephants.