Gut bacteria play a crucial role in slowing down aging by protecting DNA and telomeres

Scientists have discovered that the trillions of microbes living in our gut could be key to slowing aging and improving overall health as we grow older. A recent comprehensive review highlights how a balanced gut microbiome supports DNA stability and protects telomeres-the caps at the ends of chromosomes that naturally shorten with age and contribute to cellular aging.

The research explains that when gut bacteria become imbalanced, a condition called dysbiosis, it causes inflammation and oxidative stress throughout the body. These effects damage DNA and speed up telomere shortening, accelerating the aging process. Certain harmful bacteria produce toxins and disrupt natural DNA repair, while beneficial bacteria create substances that help protect DNA and maintain telomere length.

Interestingly, studies of centenarians (people who live past 100) reveal they have unique, diverse gut microbes that reduce inflammation and support metabolic health. Their microbiomes often resemble those of younger people, possibly helping them age more slowly and stay healthier.

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