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Articles related to focusing on healthy aging, prevention, mobility, cognition, nutrition, independence, and caregiving support.

5 min

What is the evolutionary perspective on ageing?

From an evolutionary perspective, aging, also known as senescence, is a decrease in fitness with chronological age, expressed by an increase in mortality risk and decline in reproductive success. The seemingly paradoxical process of why organisms deteriorate with age, despite natural selection optimizing for survival, has puzzled scientists for centuries. However, modern evolutionary theory offers compelling explanations, viewing aging not as a deliberate function but an unintended consequence of life history trade-offs.

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4 min

The Evolutionary Puzzle: Why did humans evolve to live so long?

According to research published in *PNAS*, humans have evolved significantly longer lifespans than great apes, who rarely exceed 50 years. This profound difference leads to one of life's most compelling biological questions: why did humans evolve to live so long? Unraveling this mystery reveals a complex interplay of social, biological, and environmental factors unique to our species.

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5 min

What are the three theories of aging?

With nearly 58 million Americans over 65, understanding the biological process of aging is more important than ever. While the effects of getting older are visible, the underlying mechanisms are complex, leading scientists to develop different explanations. Here, we'll explore **what are the three theories of aging** from a biological perspective.

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