WaleeWow

🧠 Here’s a wild fact: your brain can’t feel pain. It has zero pain receptors, which means the brain itself doesn’t register pain signals. That’s why in some cases, doctors actually perform awake brain surgeries.
During these procedures, patients are kept conscious while surgeons operate sometimes asking them to talk, move, or even play a musical instrument. Why? Because it helps doctors map which parts of the brain control speech, movement, or creativity, making sure they don’t damage critical areas.
For example, there have been violinists, guitarists, and even opera singers who literally performed mid-surgery to guide the doctors. Sounds like sci-fi, but it’s real medical practice.

Octopuses have three hearts, and their blood is blue.