2025 Nobel Prize in Medicine for three people. Marie E. Mary E. Bronkow, Fred Ramsdell and Shimon Sagaguchi have been awarded the Nobel Prize for their discoveries about how the immune system is regulated. The body's powerful immune system needs to be controlled. Otherwise, it can attack our own organs.
They were awarded the prize for their groundbreaking discoveries about peripheral immune tolerance, which prevents the immune system from harming the body