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

Oct 17, 2025

4 min

What is the formula for the probability of death by age?

According to the Centers for Disease Control and Prevention (CDC), U.S. life expectancy at birth was 78.4 years in 2023, showcasing the long-term trend of increasing longevity. Beyond a single number, actuaries and demographers use precise mathematical models to answer the question, "What is the formula for the probability of death by age?"

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Oct 16, 2025

5 min

What is average longevity also known as?

According to the World Health Organization, the global average life expectancy was around 72 years in recent years. The average longevity, more commonly referred to as **life expectancy**, is a statistical measure of the average time an individual is expected to live based on current mortality rates. This vital metric, calculated by public health officials, helps us understand the health of a population and plan for the future.

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