“It’s my goal to live to 100 – and it’s not just diet and exercise that will help me achieve it.” — Devi Sridhar
Let’s break down the science-backed habits and principles that Devi Sridhar likely incorporates (or advocates for) in her quest to live to 100, beyond just diet and exercise. Many of these align with research from Blue Zones (regions with the highest centenarian populations) and longevity studies.

1. Social Connections: The Hidden Longevity Booster
Why it matters: Loneliness has been linked to a 50% increased risk of early death (comparable to smoking 15 cigarettes a day). Strong social ties reduce stress, inflammation, and dementia risk.
How to apply:
Prioritize close relationships (family, friends) and community engagement.
Join clubs, volunteer, or maintain intergenerational connections.

2. Purpose & Mental Well-being
Why it matters: Having a sense of purpose (ikigai in Okinawa, Japan) is linked to a 15% lower mortality risk. Stress management (via mindfulness, gratitude, or hobbies) lowers cortisol, which accelerates aging.
How to apply:
Cultivate hobbies or work that feels meaningful.
Practice meditation, journaling, or spend time in nature.

3. Sleep: The Underrated Lifesaver
Why it matters: Poor sleep increases Alzheimer’s risk, weakens immunity, and disrupts metabolism. Centenarians in Blue Zones prioritize rest (7–9 hours nightly).
How to apply:
Maintain a consistent sleep schedule.
Avoid screens before bed; optimize your sleep environment (cool, dark, quiet).

4. Preventive Healthcare
Why it matters: Catching diseases early (e.g., cancer, hypertension) is key. Vaccinations, routine blood work, and dental care also impact longevity.
How to apply:
Annual check-ups + age-appropriate screenings (e.g., colonoscopies, mammograms).
Dental hygiene (gum disease links to heart disease).

5. Environment & Behavior Design
Why it matters: Longevity hotspots like Sardinia or Okinawa have environments that nudge healthy habits (walkable towns, plant-based diets, low stress).
How to apply:
Make healthy choices effortless (e.g., keep fruit visible, walk/bike instead of drive).
Limit exposure to toxins (e.g., air pollution, processed foods).

6. Genetics & Luck (The Wild Cards)
About 20–30% of longevity is genetic, but lifestyle choices influence how genes express themselves (epigenetics). Luck (avoiding accidents/illnesses) plays a role too.
Sridhar’s Likely Routine (Speculative)
As a public health expert, she probably combines:
Mediterranean-style diet (olive oil, nuts, fish, veggies).
Intermittent movement (walking, cycling over gyms).
Stress resilience (yoga, laughter, vacations).
Continuous learning (keeping the brain active).

Key Takeaway
Living to 100 isn’t just about “doing everything right”—it’s about sustainable, joyful habits that create a system for longevity. As Sridhar suggests, it’s the intersection of physical, mental, and social health that matters most

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