Amid the COVID-19 pandemic, U.S. life expectancy has fallen by a year and a half, the largest one-year decline since World War II. Black and Hispanic Americans were hit the hardest, dropping by almost 3 years. As the delta variant…

Twelve to 18 million Americans suffer from sleep apnea -- many without knowing it. Now, new research suggests that they are more than three times as likely to die from other ailments as people who sleep normally. NewsHour Health correspondent…