2–3 million red blood cells every second · All Facts

2–3 million red blood cells every second
Bone marrow releases about 2–3 million red blood cells every second into circulation.
SrcNCBI — Blood Groups and Red Cell Antigens

Next evidence →hiccupsThe diaphragm is the main muscle of breathing — and sudden spasms of it cause hiccups.

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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.
hiccupsThe diaphragm is the main muscle of breathing — and sudden spasms of it cause hiccups.
no photoreceptorsEach eye has a blind spot where the optic disc has no photoreceptors.

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