Assuming you are a typical American, you are about 2 inches taller than your great-grandparents were at the same age even though you are genetically no heartier than your ancestors were 10,000 years ago. You are stronger, healthier, smarter and living an average of 30 years longer than Americans were at the turn of the last century. That’s because scientists, educators and activists in the 20th century changed culture, the crucible that holds science, technology and large-scale changes in behavior. We are living longer because the food supply is steady and debilitating diseases are prevented before they ever occur. Improved sanitation reduces the spread of contagious diseases, and education is available to all school-age children. Information flows ubiquitously from written and electronic sources.
Read the full op-ed at AARP