What trend in U.S. life expectancy at birth has been observed since 1990?

The observed trend since 1990 in U.S. life expectancy at birth is that it has generally increased for both men and women. This rise in life expectancy can be attributed to several factors, including advancements in healthcare, improvements in disease management, better nutrition, and greater awareness of health and wellness practices. Public health initiatives aimed at reducing smoking rates and increasing physical activity have also contributed to longer lifespans.

Throughout this period, life expectancy figures have shown a gradual upward trajectory, indicating that both genders are benefiting from these advancements in health and medical care. While there have been fluctuations and disparities influenced by various social determinants of health, the overarching trend has been one of increase, highlighting the positive impacts of healthcare improvements over the decades.