What Is Aging
Aging is the gradual decline in bodily functions over time. Cells accumulate damage, tissues lose resilience, and organs work less efficiently. This process increases the risk of disease and death.
Why Do We Age Biologically
Cells can only divide a limited number of times. DNA damage builds up from metabolism and environmental exposure. Telomeres shorten with each division, eventually stopping cell growth. Proteins misfold, and waste products collect inside cells.
Can Aging Be Slowed
Research shows lifestyle factors affect aging speed. Regular exercise, balanced nutrition, and sleep support cell repair. Some studies explore drugs that target aging pathways, but none are proven yet. The biology of aging remains an active field of study.
For a deeper look at the mechanisms of aging, see the National Institute on Aging overview at https://www.nia.nih.gov/health/why-do-we-age.
