Longevity

The study of living longer and aging well. This explores the science and practice of extending both lifespan and healthspan—the years lived in good health and vitality.

Highlights

The nine boring habits that slow down aging:

1. Consistent Bedtime — go to bed at the same time every day within a 30-minute window, as sleep regularity predicts mortality better than duration alone.
2. Morning Walk — a 20-minute outdoor walk that provides circadian rhythm reset, zone 2 cardio, and can be combined with social connection.
3. Screen Curfew — turn off devices by 10 PM to prevent blue light from delaying melatonin production by roughly 90 minutes.
4. Protein at Breakfast — consume 40 grams of high-quality protein in a single meal to overcome age-related muscle resistance.
5. Strength Training — lift heavy weights twice weekly to combat sarcopenia and maintain independence in later years.
6. Fermented Foods — eat one real fermented food daily (kimchi, kefir, sauerkraut) for microbiome diversity rather than relying on supplement pills.
7. Human Connection — have one meaningful in-person or voice interaction daily, as loneliness increases mortality risk comparably to smoking.
8. Early Dinner — stop eating three hours before bedtime to improve sleep quality and glucose tolerance.
9. Eliminate Hidden Processed Foods — remove refined items like commercial bread, flavored yogurts, and bottled dressings from your diet.

Core Habits for Slowing Aging

Research suggests these simple, “boring” habits consistently contribute to longevity:

1. Sleep Regularity — Go to bed at the same time daily (within 30 min window). Sleep regularity predicts mortality better than duration alone.
2. Morning Movement — 20-minute outdoor walk for circadian reset, zone 2 cardio, and social connection.
3. Screen Curfew — Turn off devices by 10 PM to prevent blue light from delaying melatonin production (~90 minutes).
4. High Protein Breakfast — 40g of quality protein to overcome age-related muscle resistance.
5. Strength Training — Lift heavy weights twice weekly to prevent sarcopenia and maintain independence.
6. Fermented Foods — One real fermented food daily (kimchi, kefir, sauerkraut) for microbiome diversity.
7. Human Connection — One meaningful in-person or voice interaction daily; loneliness increases mortality risk like smoking.
8. Early Dinner — Stop eating 3 hours before bed for better sleep quality and glucose tolerance.
9. Eliminate Processed Foods — Remove refined items (commercial bread, flavored yogurts, bottled dressings).

Healthspan vs. Lifespan

The goal is not just to live longer, but to live well. Healthspan—years of good health and function—matters more than adding years of decline. These habits optimize both.

Links

• 9 Boring Habits That Slow Down Aging — Dr. Poonam Desai on evidence-based habits for longevity
• 4 Muscles to Train for Maximum Anti-Aging — The Race Lab on targeted muscle training: glutes, spinal extensors, soleus, and tibialis anterior. Training 2-4x weekly for 20 minutes prevents decline in metabolic function, posture, and fall risk

Related Notes

• Health — general health hub
• Outlive — Peter Attia’s guide to living longer
• Dagmara Beine — preventive lab testing for early detection of dysfunction
• The 4-Hour Body — body optimization and performance
• Exercised — exercise science and fitness