no pain receptors · All Facts

no pain receptors
Your brain can't feel pain — it has no pain receptors. Surgeons can operate on the brain while the patient is awake.
SrcUCSF Brain Tumor Center

Next evidence →2–3 million red blood cells every secondBone marrow releases about 2–3 million red blood cells every second into circulation.

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120 daysHealthy red blood cells circulate for up to about 120 days before the spleen and liver clear them.
red blood cellsThe spleen filters blood in its red pulp — trapping and recycling aging or damaged red blood cells.
2–3 million red blood cells every secondBone marrow releases about 2–3 million red blood cells every second into circulation.
hiccupsThe diaphragm is the main muscle of breathing — and sudden spasms of it cause hiccups.

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