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Immune cells and supercentenarians
A recent study has found that individuals over the age of 110, known as "supercentenarians," possess a rare type of immune cell called CD4+ cytotoxic lymphocytes, which help destroy abnormal cells, thereby enhancing their ability to resist diseases. These cells increase with age, rising from 4% in elderly people aged 70 to 99, to 17.6% in those over 110. The findings suggest that the expansion of these cells may be a direct response to internal threats, such as abnormal or cancerous cells. While their role in achieving longevity is still under investigation, researchers believe that the immune system's ability to adapt to bodily changes may play a key role in living an exceptional lifespan.
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