Sciam

 Here’s a bullet-gist of Scientific American’s recent article on why humans live so long (based on SciAm reporting): 

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Scientific American — “Why Humans Live So Long” (gist)

• Humans have unusually long lifespans compared with other primates partly due to evolutionary adaptations—not just modern medicine.  
• Studies of hunter-gatherer groups show that even without modern health care, humans often lived much longer than chimps once they survived childhood, suggesting biology supports longer life naturally.  
• Evolution seems to have selected for better immune defenses and repair mechanisms, helping humans survive infections and environmental hazards that would kill other species earlier.  
• Genetic variants (like APOE e3) linked to lower inflammation and heart disease may contribute to longevity in many populations.  
• Some scientists question whether lifespan gains will continue indefinitely, noting rising obesity and environmental stresses could slow or reverse trends.  

If you want a shorter social-media-style summary or a list of practical tips science says may help you live longer, just tell me!