Welcome to the return of The Wall Street Journal’s Health newsletter. Each week we will update you on the biggest news and most absorbing features on health, medicine, your personal well-being and the business of health.

In this edition: The fentanyl crisis, intermittent fasting, RSV, Covid-19 and drug prices

A New Front Line in the Fentanyl Crisis. Business owners, elected officials and grassroots organizers are eyeing nightlife hot spots--from clubs and bars to restaurants and pizza shops--to inform people about fentanyl test strips for testing illicit drugs that could be tainted with the deadly opioid. Read more.

• They Bought Cocaine. They Died From Fentanyl. (Read)
• What Is Fentanyl and Why Is It So Dangerous? (Read)
• Vending Machines Dispense Narcan (Read)

Covid-19 Hospitalizations Are Easing. As the pandemic enters its fourth year in the U.S., the virus behind the disease remains persistent but thus far hasn’t triggered the severity of the waves seen in prior winters. “We are in a very different place,” said one public-health official. Read more.

Harvard Medical School Withdraws From U.S. News Ranking. Harvard will no longer submit information to the U.S. News & World Report’s medical-school ranking, according to the school's dean, who said he was inspired by the recent withdrawal of top law schools from a similar ranking. Read more.

Nursing Homes Scrutinized Over Antipsychotics. The Medicare agency will begin auditing nursing homes to see if they are accurately diagnosing their residents as schizophrenic, and would factor in use of antipsychotic medicines in nursing-home ratings. Read more.

Intermittent Fasting for Obese Teens? Parents and doctors are looking for new strategies to help adolescents with obesity. One controversial approach drawing the interest of some families is intermittent fasting, which limits people to eating for just a part of the day or week. Read more.

• 🎥 Intermittent Fasting May Have Cognitive Benefits. (Watch)
• Pediatricians Recommend Weight-Loss Drugs for Obese Children (Read)

Exercise and Covid-19. Higher amounts of physical activity were associated with lower rates of death and hospitalizations from Covid, in a study published recently in the American Journal of Preventive Medicine. Read more.

• Five Ways You’ll Exercise Smarter in the Future (Read)

Want to learn more about building healthy habits? Join Anne Marie Chaker, WSJ wellness reporter and competitive bodybuilder, for a Reddit AMA on Friday, Jan. 20 at 1 p.m. ET.

Drug Makers Could Raise Prices in 2023. Pharmaceutical companies are grappling with sweeping new legislation in the Inflation Reduction Act meant to blunt drug prices. The impact in 2023 may actually be higher drug prices as companies are likely to launch new drugs at higher prices to blunt the impact of later price limits. They’re also likely to raise prices on existing drugs more than usual while high inflation gives them cover, say analysts. Read more.

• Drug Prices Reach New High—in the Millions (Read)
• Drugmakers Look to Limit Medicare’s New Power to Negotiate Lower Prices (Read)

RSV Vaccine Shows Promise in Older Adults. Moderna’s shot for respiratory syncytial virus was 83.7% effective against lower-respiratory diseases in a large clinical trial. Read more.

• GSK Poised for Battle in RSV Vaccine Market (Read)
• 🎧 RSV Is Bad. Where's the Vaccine? (Listen)

This newsletter was compiled by the WSJ’s Health & Science team. Follow us on Twitter @WSJHealth and @WSJScience. Email us by replying to this newsletter.