Americans today live twice as long as they did in 1776 - here's why

Key Points:

• Life expectancy in America has roughly doubled since 1776, increasing from about 35-40 years to approximately 79 years today, largely due to reductions in infant mortality and infectious diseases.
• Key factors contributing to increased lifespan include advances in sanitation, clean water, vaccination, antibiotics, improved maternal care, and treatments for chronic diseases such as heart disease, cancer, and diabetes.
• Public health milestones like the introduction of municipal water systems, sewer networks, germ theory acceptance, food safety laws, and vaccine development significantly improved survival rates from infectious diseases.
• Recent challenges to longevity include rises in drug overdoses, suicides, alcohol-related deaths, obesity (especially in children), and certain cancers among younger adults, compounded by impacts from the COVID-19 pandemic.
• Experts emphasize that future efforts should focus not only on extending lifespan but also on improving healthspan, aiming for longer, healthier lives through lifestyle changes and public health awareness.