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Who just died at 115 years old? Supercentenarians Elizabeth Francis and Okagi Hayashi

4 min read

In recent months, the world of supercentenarian research has seen the passing of two notable individuals who both died at 115 years old. Elizabeth Francis, once the oldest person in the United States, passed away in October 2024, followed by Japan's oldest person, Okagi Hayashi, in April 2025. Their remarkably long lives offer a glimpse into the factors contributing to exceptional longevity.

Quick Summary

Several individuals, including America's Elizabeth Francis in October 2024 and Japan's Okagi Hayashi in April 2025, died at 115 years old. The passing of these supercentenarians sheds light on the genetic and lifestyle elements influencing extreme longevity.

Key Points

  • Elizabeth Francis: An American supercentenarian and Houston icon died at 115 in October 2024, credited her longevity to faith and eating fresh food.

  • Okagi Hayashi: Japan's oldest person, Okagi Hayashi, passed away at 115 in April 2025, known for her active lifestyle, gardening, and healthy diet.

  • Genetic Factors: Longevity in supercentenarians is linked to a combination of genetic predisposition and environmental factors, suggesting genes play a significant role.

  • Lifestyle Habits: Common traits for long life include regular physical activity, a plant-based diet, strong social connections, and avoiding smoking and excessive alcohol.

  • Compression of Morbidity: Research on supercentenarians often shows a delayed onset of age-related diseases, indicating a compression of illness towards the very end of life.

  • Scientific Contribution: Okagi Hayashi's participation in a longevity study and body donation to science will help researchers further understand healthy aging.

In This Article

Supercentenarians Elizabeth Francis and Okagi Hayashi Pass Away at 115

Recent headlines have marked the passing of two prominent supercentenarians who both died at 115 years old. In October 2024, Houston resident Elizabeth Francis, who was the oldest person in the United States at the time, passed away peacefully while surrounded by family. Her death was followed by that of Japan's oldest person, Okagi Hayashi, in April 2025. These individuals lived through more than a century of immense historical change and served as subjects of scientific interest into the mechanisms of exceptional longevity.

Elizabeth Francis: An American Icon of Longevity

Elizabeth Francis was born on July 25, 1909, in Louisiana, and moved to Houston as a child. She was known in her community as a beloved figure and became America's oldest person in February 2024. Throughout her life, Francis observed pivotal moments in history, including two world wars, the Great Depression, and the Civil Rights Movement. Key details about her life include:

  • Long-lived family: Her older sister, Bertha Johnson, also lived to be 106 years old before her passing in 2011.
  • Attributed longevity to faith: Francis often credited her long life to her strong faith in God, kindness, and speaking her mind.
  • Lifestyle choices: Family noted that she never smoked or drank excessively, enjoyed eating fresh vegetables from her garden, and remained mobile without a wheelchair until nearly age 108.
  • Community connections: She was a cherished member of her church and community, frequently visited by relatives, friends, and public figures.

Okagi Hayashi: Japan's Pioneer of Healthy Living

Okagi Hayashi was born on September 2, 1909, in Japan's Gifu Prefecture and passed away from heart failure in April 2025. A former schoolgirl and mother of nine, she was known for her commitment to a healthy and active lifestyle throughout her life. Here are some highlights of her impressive lifespan:

  • Active habits: Until her 80s, Hayashi gardened, took hot spring trips with friends, and exercised regularly with her husband.
  • Dietary focus: She was an advocate for healthy eating, drinking homemade green juice daily and preparing vegetable-centric meals.
  • Mental engagement: Hayashi attended calligraphy classes until her 90s and continued to enjoy completing puzzles and reading newspapers well into her later years.
  • Scientific contribution: At her request, her body was donated to medical research to help advance longevity studies.

Factors Influencing Exceptional Longevity

Research into the lives of supercentenarians like Elizabeth Francis and Okagi Hayashi often points to a combination of genetic and lifestyle factors. While genetics play a significant role, the habits and resilience of these individuals offer valuable lessons for the broader population.

Factor How It Contributes to Longevity Examples from Francis and Hayashi
Genetics Protective genetic variants can enhance cellular repair and immune function, delaying age-related diseases. Both individuals came from families with a predisposition for longevity. Francis had a sister who lived to 106.
Diet Nutritious diets, often plant-based and low in saturated fats, are common among long-lived individuals. Francis ate fresh vegetables from her garden, while Hayashi consumed a vegetable-centric diet and homemade green juice.
Physical Activity Consistent daily movement, such as walking or gardening, helps maintain physical health and independence. Hayashi exercised with her husband and gardened; Francis remained mobile into her later years.
Social and Mental Well-Being Strong social connections and a positive outlook reduce stress and inflammation. Both Francis and Hayashi maintained strong ties to their families and communities.
Avoidance of Harmful Habits Not smoking or abusing alcohol is consistently linked to longer lifespans. Francis did not smoke and drank only occasionally. Hayashi also avoided smoking and excessive drinking.

A Deeper Look into the Science of Aging

The passing of a supercentenarian like Okagi Hayashi, who participated in longevity research, provides scientists with a unique opportunity to study the biological mechanisms of extreme old age. These studies can reveal why certain individuals compress morbidity, meaning they delay or escape age-related illnesses such as cardiovascular disease, cancer, and dementia. By understanding the factors that allowed these individuals to remain healthy for so long, researchers hope to develop new strategies for promoting healthy aging for everyone.

Conclusion: Lessons from Lives Well Lived

While the answer to who just died at 115 years old? points to recent obituaries like Elizabeth Francis and Okagi Hayashi, their stories offer more than just an end to a long life. They provide powerful anecdotes and, in some cases, scientific data on the intricate balance of genetics, lifestyle, and mental fortitude that can lead to exceptional longevity. For those interested in pursuing a long and healthy life, their stories highlight the importance of faith, community, healthy eating, and staying active. Their remarkable journeys remind us that age is not just a number, but a testament to a life lived with purpose and resilience.

For more information on the world's oldest people and supercentenarian research, you can explore the Gerontology Research Group (GRG) World Supercentenarian Rankings List.

Frequently Asked Questions

Elizabeth Francis was an American supercentenarian from Houston who was the oldest person in the United States when she passed away at the age of 115 in October 2024. She was known for her strong faith, kind demeanor, and a life rich in history.

Okagi Hayashi was a Japanese supercentenarian who held the title of Japan's oldest person until she passed away from heart failure at age 115 in April 2025. She was born in 1909 and was a proponent of a healthy, active lifestyle.

A supercentenarian is a person who has lived to or beyond the age of 110. Such individuals are rare and often become subjects of scientific study to better understand the mechanisms of exceptional longevity.

While both individuals attributed their long lives to personal beliefs and healthy habits, they did not possess a single 'secret.' Francis pointed to her faith and diet, while Hayashi focused on an active lifestyle and healthy eating. Their longevity is likely a complex combination of genetics, lifestyle, and environment.

Studying supercentenarians can offer insights into the genetic and environmental factors that lead to long, healthy lives. Key takeaways often include the importance of regular physical activity, a nutritious diet, strong social connections, and a positive mindset.

While Elizabeth Francis and Okagi Hayashi are among the most recent and well-documented cases of individuals dying at age 115, such events are rare. Longevity researchers and databases like the Gerontology Research Group track and validate these cases globally, confirming the rarity of this milestone.

Some research suggests that many supercentenarians exhibit a 'compression of morbidity,' delaying the onset of major age-related diseases until very late in life. Their ultimate cause of death may be attributed to a general systemic decline or organ exhaustion rather than a specific illness, though some, like Okagi Hayashi, die from heart-related conditions.

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Medical Disclaimer

This content is for informational purposes only and should not replace professional medical advice. Always consult a qualified healthcare provider regarding personal health decisions.