The Future of Longevity: How to Live Longer and Stay Healthier

Longevity is how long you live, and in medicine it also means how many of those years you stay healthy and independent. The future of longevity care is moving from treating disease late to measuring aging early and acting sooner.

Americans are living longer than ever, yet many spend their final years managing chronic illness. This guide explains what longevity means, what research says about aging, which habits matter most, and where biological age testing fits in.

Key Takeaways

• Longevity covers both lifespan (the years you live) and healthspan (the years you live in good health).
• U.S. life expectancy reached 79.0 years in 2024, but a 2024 study found Americans lived about 12.4 years with illness or disability, using WHO data through 2019.
• Mayo Clinic researchers point to physical activity, healthy eating, social connection, and sleep as habits that shape how well people age.
• Healthspan can be tracked in everyday care by checking physical function, thinking skills, and independence.
• Biological age tests are still being studied, and they do not predict how long you will live.
• A longevity doctor can pair testing with a personal plan, but no treatment guarantees extra years.

What is longevity, and what does longevity mean for your health?

Longevity is the length of a person’s life, and in health care it also points to how well those years are lived. The meaning of longevity has shifted from simply reaching old age to staying active, clear-minded, and independent for as long as possible.

Cleveland Clinic Abu Dhabi describes longevity medicine as an approach that combines predictive methods, personalized medicine, genetic testing, and lifestyle changes to extend healthspan. Longevity and aging are connected, but they are not the same thing. Aging happens to everyone, while longevity describes how that process plays out in your body.

What is the difference between lifespan and healthspan?

Lifespan is the total number of years you live. Healthspan is the number of those years you stay free of significant illness or disease, according to Mayo Clinic.

Mayo Clinic physicians add that healthspan includes physical function, thinking skills, and the ability to live independently. These areas can be measured over time in routine care, which makes healthspan a practical goal and not just an idea.

Are people living longer, and are those years healthy?

People are living longer, but the extra years are not always healthy ones. CDC data show that life expectancy at birth in the United States was 79.0 years in 2024, the highest level on record.

Life expectancy is a population average, while longevity is personal. A 2024 JAMA Network Open study of 183 countries found a global gap of 9.6 years between lifespan and healthspan in 2019. The United States had the largest gap at 12.4 years, which the authors linked to a rise in noncommunicable diseases. On average, women had a gap that was 2.4 years wider than men.

What factors contribute to longevity?

Longevity is shaped by many things, including genetics, daily habits, medical care, and your surroundings. You cannot change your genes, but you can influence the other three. Mayo Clinic researchers report that physical activity, healthy nutritional habits, social connection, and sleep strongly affect how well people age.

Chronic disease matters too. Because the U.S. gap between lifespan and healthspan is linked to noncommunicable diseases, finding heart, metabolic, and brain risks early may help protect healthspan. Your doctor can tell you which screenings fit your age and history.

How can I live longer and healthier?

If you are wondering how to live a longer and healthier life, focus on daily habits you can keep for years. No single habit guarantees a longer life, but together they support healthspan.

1. Move most days. The CDC says adults need at least 150 minutes of moderate activity each week, and brisk walking counts.
2. Add strength training on 2 or more days a week, working all major muscle groups.
3. Build your diet and exercise for longevity plan around food you can keep eating: vegetables, fruit, whole grains, and good protein sources. Ask your doctor first if you have diabetes or kidney disease.
4. Protect your sleep with regular bed and wake times. If poor rest continues, our page on sleep issues explains how Next Health evaluates it.
5. Stay connected with family, friends, and your community.
6. Keep up with preventive care, such as blood pressure, cholesterol, and blood sugar checks. Our heart disease prevention page covers this area.

Check with your doctor before you start a new exercise program.

What does longevity research say about the future of aging?

Researchers are studying whether targeting the biology of aging could delay age-related diseases. Mayo Clinic scientists say this approach has the potential to postpone the onset of age-related disease and shorten the period of illness and disability near the end of life.

Biological age tests are one tool in this research. Many estimate how fast your body may be aging using DNA methylation patterns, which are chemical changes on DNA that shift with age. A 2024 systematic review of 33 clocks reported that clocks built from routine blood markers have predicted mortality better than chronological age. A recent review in PubMed Central also notes that questions remain about how reliable these tests are in commercial wellness settings, and that different clocks can give different answers.

How does a longevity doctor approach aging?

A longevity doctor looks for early risk signs, builds a plan around your results, and tracks your progress over time. At Next Health, Dr. Mahsin Habib leads this work. He has more than 30 years of clinical experience in internal medicine, functional medicine, and longevity care, and he founded the practice in Ashburn, Virginia in 2001.

Next Health describes its approach as predict, prevent, and prolong, with primarily drug free treatment plans. Consultations average about one hour, followed by lab work and a personal plan. Programs that fit this approach include:

• DNA age testing and biological age evaluation, which compare how your body is aging with your calendar age
• The Longevity Evaluation, which includes DNA age and pace of aging results
• The Advanced Cardiac Program for early assessment of heart risk
• Brain Optimization, which focuses on cognitive aging
• Regenerative therapies, where the evidence differs by therapy and your doctor should explain the research behind each option

Results vary from person to person. No program can promise extra years of life, so the goal is a plan matched to your data and your health goals.

Where can I find longevity care in Northern Virginia and Maryland?

Next Health serves patients from Washington DC, Northern Virginia, and Maryland at two offices. You can book a consultation at either location.

Ashburn, Virginia
44121 Leesburg Pike, Suite 115
Ashburn, VA 20147
Phone: (703) 724 4000

Bethesda, Maryland
5101 River Road, Suite 106
Bethesda, MD 20816
Phone: (703) 724 4000

What else do patients ask about longevity?

Is longevity the same as anti-aging?

Not exactly. Longevity focuses on adding healthy years, while anti-aging often refers to appearance or marketing claims. Mayo Clinic researchers note that people keep searching for a magic pill, yet their studies point to lifestyle factors as what matters most.

At what age should I start thinking about longevity?

At any age. Habits you build in your 30s and 40s can support you later, and starting later still helps. The CDC states that some physical activity is better than none.

Can a biological age test tell me how long I will live?

No. These tests estimate how fast your body may be aging, and reliability varies from test to test. A doctor should read the results alongside your history, exam, and lab work.

Do supplements or IV therapy help people live longer?

There is no proof that either one extends life on its own. They may help correct a deficiency that your doctor has confirmed, but they should not replace movement, sleep, food, and connection. Ask your doctor before you start anything new.

What happens at a first visit to Next Health?

Your doctor reviews your history and performs an exam, which takes about an hour on average. Lab results then guide a personal plan, and your doctor explains each step and what to expect.

This article is for general education and is not medical advice, so please talk with your own doctor about your health, and note that results from any program vary.

References

1. Centers for Disease Control and Prevention, National Center for Health Statistics. Mortality in the United States, 2024. NCHS Data Brief No. 548. January 2026. https://www.cdc.gov/nchs/products/databriefs/db548.htm
2. Garmany A, Terzic A. Global Healthspan Lifespan Gaps Among 183 World Health Organization Member States. JAMA Network Open. 2024;7(12):e2450241. https://pubmed.ncbi.nlm.nih.gov/39661386/
3. Mayo Clinic News Network. Mayo Clinic Q and A: Lifespan vs. healthspan. https://newsnetwork.mayoclinic.org/discussion/mayo-clinic-q-and-a-lifespan-vs-healthspan/
4. Mayo Clinic News Network. Rethinking aging: Why healthspan matters as much as lifespan. 2026. https://newsnetwork.mayoclinic.org/discussion/rethinking-aging-why-healthspan-matters-as-much-as-lifespan/
5. Centers for Disease Control and Prevention. Adult Activity: An Overview. https://www.cdc.gov/physical-activity-basics/guidelines/adults.html
6. Cleveland Clinic Abu Dhabi. Longevity Medicine. https://www.clevelandclinicabudhabi.ae/health-library/health-resources/treatments-and-procedures/longevity-medicine
7. Warner et al. A systematic review of phenotypic and epigenetic clocks used for aging and mortality quantification in humans. Aging (Albany NY). 2024;16(17):12414 to 12427. https://pubmed.ncbi.nlm.nih.gov/39215995/
8. Epigenetic clocks: advancing biological age measures towards meaningful clinical use. PubMed Central. https://pmc.ncbi.nlm.nih.gov/articles/PMC12905613