Written by: Andrew Lisa | Roughly 1 in 2 Americans retire between the ages of 61 and 65, and nearly 1 in 5 retire before that. Most Americans also now take Social Security before their full retirement age, which varies by year of birth. Not only are people retiring earlier, but they're also living longer — much longer — and there's mounting evidence to suggest that early retirement often doesn't translate into just a few extra years of golf, fishing, and margaritas on the beach. From your health and happiness to, of course, financial realities, consider the risks of calling it quits too soon.