Longest-lived cells in the hu­man body

BBC Earth (Asia) - - Science -

On av­er­age, the cells in your body are re­placed ev­ery 7 to 10 years. But those num­bers hide a huge vari­abil­ity in life­span across the dif­fer­ent or­gans of the body. Neu­trophil cells (a type of white blood cell) might only last two days, while the cells in the mid­dle of your eye lenses will last your en­tire life. And it’s even pos­si­ble that your brain cells might have longer max­i­mum life­spans than you do. In 2013, re­searchers trans­planted neu­rons from old mice into the brains of longer-lived rats and found that

the cells were still healthy af­ter liv­ing for two whole mouse life­spans!

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