Answer:
The trend of human life expectancy in the United States has been generally positive over the past several decades, although there have been some recent declines in life expectancy in certain demographic groups. According to data from the Centers for Disease Control and Prevention (CDC), life expectancy at birth in the United States was 76.1 years in 1990 and had increased to 78.9 years by 2020. However, this trend has not been consistent across all demographic groups, and there have been recent declines in life expectancy among certain populations, including non-Hispanic White individuals and those living in rural areas. Factors contributing to these declines include increases in deaths from drug overdoses, deaths, and chronic liver disease, as well as disparities in access to healthcare and other social determinants of health. Efforts to address these disparities and improve overall health outcomes in the United States are ongoing, and will require a comprehensive approach that addresses the complex array of factors that contribute to health and well-being.