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Articles on Cellular senescence

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While some people may be older in chronological age, their biological age might be much younger. FangXiaNuo/E+ via Getty Images

Aging is complicated – a biologist explains why no two people or cells age the same way, and what this means for anti-aging interventions

Aging is a culmination of factors spanning from your cells to your environment. A number of interconnected processes determine how quickly your body is able to repair and recover from damage.
Healthspan measures incorporate quality of life in ways that lifespan does not. Ira T. Nicolai/The Image Bank via Getty Images

Are you a rapid ager? Biological age is a better health indicator than the number of years you’ve lived, but it’s tricky to measure

Aging is a major risk factor for many chronic diseases. Figuring out what influences longevity and how to identify rapid agers could lead to healthier and longer lives for more people.
Telomeres (red) at the ends of chromosomes protect your DNA from damage. Thomas Ried/NCI Center for Cancer Research, National Cancer Institute, National Institutes of Health via Flickr

Cells become zombies when the ends of their chromosomes are damaged – a tactic both helpful and harmful for health

The protective caps at the ends of chromosomes naturally shorten over time. Researchers found that direct damage can prematurely trigger senescence and contribute to age-related diseases like cancer.
The older you get, the more slowly you heal, and there are a number of reasons why. Westend61 via Getty Images

Why do older people heal more slowly?

Healing is a complicated process. As people age, higher rates of disease and the fact that old cells lose the ability to divide slow this process down.

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