WASHINGTON — The Food and Drug Administration has moved to limit the use of fluoride supplements used to strengthen children's teeth, among actions Health Secretary Robert F. Kennedy Jr. and his ...

Amanda Smith is a freelance journalist and writer. She reports on culture, society, human interest and technology. Her stories hold a mirror to society, reflecting both its malaise and its beauty.

Fat loss improves metabolism and heart health, reducing the risk of chronic conditions. Muscle tissue burns more calories than fat tissue, boosting metabolism even at rest. Lowering body fat, ...