Daylight saving time and early school start times cost billions in lost productivity and health care expenses

Investigations into the 1986 Space Shuttle Challenger disaster revealed that key decision-makers worked on little sleep, raising concerns that fatigue impaired their judgment. Similarly, in 1989, the Exxon Valdez oil…

208 million Americans are classified as obese or overweight, according to new study synthesizing 132 data sources

Nearly half of adolescents and three-quarters of adults in the U.S. were classified as being clinically overweight or obese in 2021. The rates have more than doubled compared with 1990.…

Women are at a higher risk of dying from heart disease − in part because doctors don’t take major sex and gender differences into account

A simple difference in the genetic code – two X chromosomes versus one X chromosome and one Y chromosome – can lead to major differences in heart disease. It turns…