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Scientists say they reversed two of the biological signs of aging by giving people oxygen therapy in a pressurized chamber.
As people age, their bodies tend to accumulate what are known as senescent or “zombie” cells. These secrete harmful chemicals as they build up in the body, usually by the time people enter their 60s.
Senescent cells have been linked to many of the chronic conditions associated with old age, including arthritis, osteoporosis, diabetes and dementia.
Aging also manifests itself through the shortening of DNA fragments found on the tips of chromosomes that carry genetic information within cells.
These protective regions of DNA, known as telomeres, are often compared to the plastic caps attached to the ends of shoelaces to prevent them from unraveling. Longer
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