Global longevity trends
For most of human history, living to 70 was an exceptional achievement. Major health and sanitation advances in the 20th and 21st centuries have fundamentally reshaped global longevity. While life expectancy at birth was only about 32 years in 1900, it more than doubled to 73 years by 2023. This astonishing increase means that for a large portion of the population today, living past 70 is a realistic expectation rather than a rare event. However, this global average hides significant differences between regions and countries, influenced by a multitude of factors.
The reality behind the numbers: A deeper dive
When we ask what percent of people make it past 70, we must consider regional differences. While many developed nations boast average life expectancies well into the 80s, others in less developed parts of the world still face significant challenges to survival. This is not just about infant mortality; life expectancy has increased across all age groups.
Interestingly, an individual's likelihood of living longer improves as they age. For example, if a person has already reached age 65, their probability of surviving to 70 is very high. In the U.S., data from 2015 showed that if a man lived to age 65, he had a 90% chance of reaching 70. For women, the odds were even higher, at 93%. This demonstrates that surviving to later life means overcoming many early-life risks, placing a person on a different statistical trajectory.
Comparison: Life expectancy by country
Comparing life expectancy at birth across different nations reveals the disparity in achieving advanced age. The global average is around 73 years, but many countries significantly exceed this, while others fall far below.
| Country | Life Expectancy (both sexes, est.) | Date of Information | Regional Context |
|---|---|---|---|
| Monaco | 89.8 years | 2024 | Developed |
| Japan | 85.2 years | 2024 | Developed |
| United States | 80.9 years | 2024 | Developed |
| Brazil | 76.3 years | 2024 | Developing |
| Nigeria | 55 years | 2025 | Developing |
Key factors influencing longevity
While genetics play a role in determining lifespan, they account for a relatively small portion (around 20-30%) of an individual's longevity. Lifestyle and environmental factors are far more influential, especially before age 60. People in so-called "Blue Zones"—regions known for high longevity—often share a number of healthy lifestyle habits.
The power of lifestyle
- Healthy Diet: A diet rich in fruits, vegetables, whole grains, and lean proteins can significantly reduce the risk of chronic diseases such as heart disease and diabetes.
- Regular Exercise: Consistent physical activity not only strengthens muscles and joints but also lowers the risk of cardiovascular issues, boosts mood, and helps maintain a healthy weight.
- No Smoking: Avoiding tobacco use is one of the most impactful decisions for extending both lifespan and health span, as smoking damages nearly every organ in the body.
- Moderate Alcohol Intake: For those who drink, moderation is key. Heavy alcohol consumption is linked to a variety of serious health issues.
- Strong Social Connections: Combatting loneliness and social isolation is crucial for mental and physical health in later life and is linked to lower risk of cognitive decline and other health problems.
- Stress Management: Chronic stress can accelerate aging. Techniques like meditation or mindfulness can help manage stress and support overall well-being.
Challenges and considerations for aging past 70
Living longer also means facing a higher probability of managing age-related health challenges. With around 92% of seniors having at least one chronic disease and 77% having two or more, preventative and ongoing care become increasingly important.
Common issues for older adults
- Chronic Health Conditions: Heart disease, cancer, and diabetes are prevalent among older adults, often requiring ongoing management.
- Cognitive Health: While some cognitive changes are a normal part of aging, conditions like dementia affect millions globally, highlighting the importance of mental stimulation and overall brain health.
- Physical Injury: Falls are a leading cause of injury for older adults, often due to weakened bones and decreased balance. Simple precautions can help prevent them.
- Sensory Impairments: Loss of vision and hearing becomes more common, but treatable aids like glasses and hearing aids can significantly improve quality of life.
- Oral Health: Issues like gum disease and tooth decay can impact nutrition and overall health but are often preventable with regular dental care.
Strategies for healthy aging
- Stay Physically Active: Regular, moderate-intensity exercise, such as walking, swimming, or gardening, is crucial for maintaining strength, balance, and heart health.
- Maintain a Healthy Diet: Focus on nutrient-dense foods while staying hydrated. Consider needs as they change with age.
- Keep Your Mind Active: Engage in lifelong learning, puzzles, reading, or learning new skills to boost cognitive health.
- Prioritize Social Engagement: Participate in hobbies, volunteer, or join community groups to combat social isolation and maintain a sense of purpose.
- Schedule Regular Check-ups: Stay on top of preventative screenings and discuss any new symptoms with your healthcare provider promptly.
- Review Medications: Bring a list of all medications and supplements to your doctor's visits to ensure they are safe and working effectively.
- Create a Safe Home Environment: Take steps to prevent falls, such as installing grab bars and ensuring good lighting.
Conclusion
More people than ever before are living past the age of 70, thanks to dramatic improvements in public health and medical care. While global percentages vary, the overall trend is clear: modern society is getting older. However, reaching this milestone is only part of the story. The quality of those later years is highly dependent on a person's lifestyle choices, their social connections, and access to quality healthcare. By focusing on healthy habits and proactive care, individuals can significantly increase their chances of not only living longer but also enjoying those years to the fullest. For more data on global longevity trends, visit Our World in Data on Life Expectancy.
