Life Expectancy in the United States
According to the National Center for Health Statistics (NCHS) branch of the Centers for Disease Control and Prevention (CDC), the average life expectancy at birth in the United States is 77.5 years (74.8 years for males and 80.2 years for females).
The US averages sit slightly lower than other comparable developed nations (like Germany or Australia) due to socioeconomic factors, cardiovascular disease rates, and historical differences in national health infrastructure. However, personal lifestyle choices play an incredibly significant role in offsetting these baseline averages.