CDC Travel Guidelines: What You Need to Know

The Centers for Disease Control and Prevention updated its guidance for fully vaccinated Americans in April, saying that traveling both domestically and internationally was low risk. The long-awaited recommendations were issued by federal health officials after a series of studies found that vaccines administered in the United States were robustly effective in preventing infections in…

The Health Benefits of Coffee

In discussing his audiobook on caffeine with Terry Gross on NPR last winter, Michael Pollan called caffeine “the enemy of good sleep” because it interferes with deep sleep. He confessed that after the challenging task of weaning himself from coffee, he “was sleeping like a teenager again.” Dr. Willett, now 75, said, “You don’t have…