Why Do We Age? Scientists Are Figuring It Out.

By Dana G. Smith, The New York Times.

Published March 20, 2024; Updated March 25, 2024

Researchers are investigating how our biology changes as we grow older — and whether there are ways to stop it.

Scientists are working to understand the biological causes of aging in the hope of one day being able to offer tools to slow or stop its visible signs and, more important, age-related diseases. These underlying mechanisms are often called “the hallmarks of aging.” Many fall into two broad categories: general wear and tear on a cellular level, and the body’s decreasing ability to remove old or dysfunctional cells and proteins.

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