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One Tick Bite Can Make You Allergic To Steak
Some tick bites can leave something behind: an immune reaction to alpha-gal, a sugar found in beef, pork and lamb.
Short. Strange. True.The real science
red blood cells · spleen · macrophage · human body · biology facts · why is poop brown
The real science
Every red blood cell lives for about four months. When it gets old and stiff, the spleen traps it and a macrophage swallows it whole. The iron gets recycled, and the leftover pigment turns green and then yellow, just like a healing bruise. Then your gut bacteria turn it brown.
Don’t try anything shown in this video.
Follow the facts
- PMC: Macrophages and iron trafficking at the birth and death of red cells
- StatPearls: Physiology, Spleen
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Why A Stuck Coin Battery Burns Your Throat From Inside
A coin battery has no sharp edges, but if it gets stuck in the esophagus, wet tissue completes its circuit.
Short. Strange. True.The real science
#Human body
Why Your Seatbelt Locks When You Yank It
Pull a seatbelt slowly and it glides out, but yank it and it locks right away.
Short. Strange. True.The real science