Longlevity Blog
Research-backed articles on the habits that shape how long, and how well, you live.
How to Lower Your Biological Age (What the Evidence Actually Shows)
You can't reverse aging on command, but the evidence shows you can slow its pace. The honest guide to the habits that actually move biological-age markers.
RelationshipsHow to Compare Life Expectancy With Your Partner (and Why It's the Best Motivation There Is)
Comparing your projected lifespan with someone you love turns an abstract number into shared time. Here's the research on couples and health, and how to do it kindly.
Biological AgeBiological Age vs Chronological Age: What It Means and Why It Matters
Chronological age counts birthdays; biological age estimates how your body is actually aging. What each means, how bio age is measured, and why it matters.
MethodologyWhy Your Life Expectancy Goes Up as You Get Older (The Survivorship Effect)
US life expectancy is 78.4 — yet a 65-year-old man can expect to reach 83, and an 85-year-old to reach 91. The survivorship effect, explained honestly.
PurposeFind Your Why: The Longevity Question No Calculator Can Answer for You
A 10-minute guided exercise to find your real reason for wanting more years: picture a morning at 90, name one person, and finish one honest sentence.
MethodologyHow We Vet Every Longevity Recommendation: The 5 Checks Behind 160+ Habits
Most longevity advice is ungraded, unsourced, and never safety-screened. Here is the 5-step standard every one of our 160+ recommendations has to pass before it reaches you.
SmokingHow Many Years Does Quitting Smoking Really Add to Your Life?
The 21st-Century Hazards of Smoking study (216,917 US adults) found cessation before age 40 avoids more than 90% of the excess mortality risk. Here's why it's never too late, and exactly what the data shows.
ExerciseThe Minimum Effective Exercise Dose for Longevity (Backed by 661,000 People)
You don't need two hours at the gym. A study of 661,000 adults found that 75 minutes of brisk walking per week captures most of the mortality benefit. Here's what the data actually shows.
SleepHow Much Does Sleep Actually Add to Your Lifespan? The Science Behind 7-8 Hours
A 2017 meta-analysis of 3.5 million people across 67 prospective cohort studies found both short and long sleep raise mortality risk, with lowest risk at 7-8 hours. Here's what that means for your actual lifespan.
PurposePurpose and Longevity: Why People Who Feel Needed Live Longer
A 2019 study of 6,985 adults found a strong sense of life purpose was associated with 15% lower all-cause mortality, even after controlling for wealth, education, and physical health.
RelationshipsIs Loneliness Really as Deadly as Smoking? What the Research Actually Shows
A 2015 meta-analysis of 3.4 million people across 70 studies found loneliness and social isolation raise mortality risk by 26-32% — comparable to smoking and obesity. Here's what the research actually shows.
StressStress and Mortality: How Chronic Psychological Distress Actually Shortens Your Life
A 68,222-person pooled analysis in the BMJ found higher psychological distress raises cardiovascular and all-cause mortality in a clear dose-response pattern. Here's what the science actually supports.
DietThe Longevity Diet: What a Randomized Trial Tells Us About Eating to Live Longer
A modeling study estimates a sustained shift to a healthier diet can add several years of life; the PREDIMED randomized trial shows the cardiovascular mechanism. Here's what the research actually shows, and the eating pattern behind the longest-lived populations.
AlcoholIs Any Amount of Alcohol Safe? What the Largest Study Ever Actually Found
A 2018 Lancet study of 28M people across 195 countries concluded the safest level of alcohol consumption is zero. Here's what the research actually shows, and the nuances you won't hear in headlines.
Preventive CareDo Annual Checkups Actually Help You Live Longer? The Research on Preventive Screening
The generic annual physical shows weak mortality evidence, but the screenings it schedules are among the strongest interventions in medicine. Here's what the research shows about which preventive screenings actually save lives, and which don't.