wunder beta⏱️ The Science of Longevity
Why we age, where people live longest, and what science can do about it.
What you’ll learn
- Describe the hallmarks of aging framework and the role of telomeres.The 2013 hallmarks of aging, expanded to twelve in 2022, organize aging into measurable processes like telomere attrition, giving science concrete targets.
- Explain what Blue Zones reveal about longevity and the difference between lifespan and healthspan.Blue Zone populations live long through combined habits, plant-based diets, daily movement, social bonds, and stress management, highlighting the goal of extending healthspan, not just lifespan.
- Understand caloric restriction, nutrient-sensing pathways, and evidence-based longevity advice.Caloric restriction reliably extends lifespan in studies by modulating nutrient-sensing pathways like insulin/IGF and mTOR, while lifestyle habits remain the best-supported human advice.
Questions this course answers
Who proposed the influential 'hallmarks of aging' framework in 2013?
The 2013 hallmarks of aging framework was proposed by Carlos Lopez-Otin and colleagues and became highly influential in the field.
What happens to telomeres as cells divide?
Telomeres, the protective caps on chromosome ends, shorten with each cell division until a critical threshold triggers senescence or cell death.
How was the hallmarks framework updated in 2022?
The 2022 update expanded the original nine hallmarks to twelve, adding disabled macroautophagy, chronic inflammation, and dysbiosis.
Which of these is one of the recognized Blue Zones?
Okinawa, Japan is one of the five Blue Zones, alongside Ikaria, Sardinia, Nicoya, and Loma Linda.
What do Blue Zone populations have in common besides diet?
Blue Zone longevity stems from a combination of plant-based diets, daily movement, strong social connections, and effective stress management.
What is the difference between lifespan and healthspan?
Lifespan measures total years lived, while healthspan measures the years lived in good health; longevity science aims to extend healthspan.
Grounded in trusted sources
- Lopez-Otin et al., 'The Hallmarks of Aging,' Cell, 2013
- Lopez-Otin et al., 'Hallmarks of aging: An expanding universe,' Cell, 2022 (PMID 36599349)
- Blue Zone Dietary Patterns, Telomere Length Maintenance, and Longevity: A Critical Review, Current Research in Nutrition and Food Science
- Lessons Learned From Blue Zones, Lifestyle Medicine Pillars and Beyond, American Journal of Lifestyle Medicine (SAGE)
- Effect of long-term caloric restriction on telomere length in healthy adults: CALERIE 2 trial analysis, NCBI PMC11296136
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