Immune System
Latest about Immune System
![tattoo](https://cdn.mos.cms.futurecdn.net/rLzAMGu4xVaaQaiYt7XP2G-320-80.jpg)
Tattoos Last Forever Because Your Immune Cells Are Hungry for Dead Skin
By Brandon Specktor published
Tattooed mice reveal why some ink never fades.
![null](https://cdn.mos.cms.futurecdn.net/W8XXKhQsVprcNAMpXdKVSj-320-80.jpg)
'American Murderer' Worm Strips To Evade Your Immune System
By Brandon Specktor published
Why does this worm strip out of its sheath before it infects you? It could be playing an elaborate trick on your immune system.
![Selena Gomez's Instagram photo of herself in the hospital after a kidney transplant.](https://cdn.mos.cms.futurecdn.net/GkQhLKvGZBCRMsK43QWekB-320-80.jpg)
Why Selena Gomez Needed a Kidney Transplant
By Rachael Rettner published
Why do patients with lupus sometimes need kidney transplants?
![A woman's abdomen shown with a knotted rope in front](https://cdn.mos.cms.futurecdn.net/xhMkhE6VRWS8XSCzbG8ncN-320-80.jpg)
How 'Bad' Gut Bacteria Can Change Their Evil Ways
By Christopher Wanjek published
The idea that gut bacteria can either be "good" or "bad" may not tell the whole story.
![belly, abdomen, stomach](https://cdn.mos.cms.futurecdn.net/XYhtDiUdVVNLjt4bPxdnAT-320-80.jpg)
How Your Belly Fat Is Linked to Your Immune System
By Sara G. Miller published
You may not love your belly fat, but the large sheet of fat that stretches across your abdomen serves a purpose.
![A self portrait of Francisco Goya](https://cdn.mos.cms.futurecdn.net/8ePZ5nRq3UyCWrTPDKcuv8-320-80.jpg)
Goya's Mystery Illness: Nearly 200 Years Later, Docs Have a Diagnosis
By Rachael Rettner published
The famous Spanish painter Francisco Goya suffered a mysterious illness and lost his hearing in 1793, and now experts may have figured out why.
![An artist's image of a storm within the mind.](https://cdn.mos.cms.futurecdn.net/gHLMFEnTT2rBxNAkGbXtna-320-80.jpg)
In Rare Disorder, Woman's Immune System Attacks Her Own Brain
By Sara G. Miller published
A young woman's weeklong bout of "strange behavior" was caused by a rare disease in which the immune system attacks the brain, according to a new report of the woman's case.
![Leprosy](https://cdn.mos.cms.futurecdn.net/oXvpxnmNvNhSWqbh6DiEoh-320-80.jpg)
6 Strange Facts About Leprosy
By Sara G. Miller published
Leprosy, also called Hansen's disease, isn't a disease of the past.
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