Cholesterol is a natural component in everyone’s blood, and supports normal function of cell membranes, hormone levels and more. However, having too much, is considered hyperlipidemia, ...

Figures may not sum to 100% due to rounding. Explore charts about: Explore charts about: Search by region, state, or metro area Recommended citation: Pew Research Center. 2025. “2023-24 U.S. Religious ...

For 120 years the American Lung Association has focused on driving excellence and innovation through research. Today, through our Research Institute, we continue to support trailblazing research, ...