Over the years, many individuals have searched for the elusive Fountain of Youth; while some claim to have discovered it, for the vast majority, it still remains a well-kept secret. Although significant progress has been achieved in understanding how to age healthily and extend longevity, more work has to be done. Despite your best efforts, most individuals are aware that there is no panacea for long life and excellent health. To maintain your health as you age, you need dedication, hard work, and occasionally even self-denial. Giving up unhealthy eating practices, a couch potato lifestyle, and the frantic schedules to which so many people are used is necessary to achieve this. The principles of fantastic living, which are also the basics of appropriately aging, might be neglected in favor of maintaining external appearances. But you can't just ignore the fundamentals. In life, maintaining equilibrium is crucial, and good aging is no exception. The consequences of skipping necessary healthcare can be just as costly and dangerous as neglecting your car's regular maintenance. You can credit the baby boomer generation, the oldest of whom are now entering their 60s, for today's emphasis on youthful, healthy aging. Healthy aging is currently a trendy issue. This chapter examines the causes of people living longer and better lives today than they did in the past, as well as the factors that affected life expectancy 100 years ago and current factors that affect our health and longevity.