Richard Harris

For many years, the death rate from cancer climbed steadily, and the focus of big cancer meetings was the quest for better treatments to bring malignancies under control. Cancer death rates have been falling in recent decades, and that's allowed researchers to ask another important question: Are some people getting too much treatment for their cancers?

The answer, from the American Society of Clinical Oncology meeting in Chicago these past few days, is an emphatic yes.

If you go to the hospital for medical treatment and scientists there decide to use your medical information to create a commercial product, are you owed anything as part of the bargain?

That's one of the questions that is emerging as researchers and product developers eagerly delve into digital data such as CT scans and electronic medical records, making artificial-intelligence products that are helping doctors to manage information and even to help them diagnose disease.

Artificial intelligence, which is bringing us everything from self-driving cars to personalized ads on the web, is also invading the world of medicine.

In radiology, this technology is increasingly helping doctors in their jobs. A computer program that assists doctors in diagnosing strokes garnered approval from the U.S. Food and Drug Administration earlier this year. Another that helps doctors diagnose broken wrists in X-ray images won FDA approval on May 24.

Updated 12:43 p.m. ET

Perhaps 5,000 people died in Puerto Rico in 2017 for reasons related to September's Hurricane Maria, according to a study that dismisses the official death toll of 64 as "a substantial underestimate."

A research team led by scientists at the Harvard T.H. Chan School of Public Health didn't simply attempt to count dead bodies in the wake of the powerful storm. Instead, they surveyed randomly chosen households and asked the occupants about their experiences.

The Food and Drug Administration has approved a first-of-its-kind drug that reduces the number of migraines among people prone to these sometimes crippling headaches.

Sometimes less may be better when it comes to treatment for breast cancer. A new study finds that women who have been diagnosed with early-stage HER2-positive breast cancer did just as well with six months of treatment with the drug Herceptin (trastuzumab) as did women who received a 12-month course of this treatment.

And the women with the shorter treatment had fewer side-effects, most notably less damage to their hearts.

Children and adolescents are getting fewer prescription drugs than they did in years past, according to a study that looks at a cross-section of the American population.

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Scientists have launched two large studies to test a medical treatment that, if proven effective, could have an enormous impact on the leading cause of death in American hospitals.

The treatment is aimed at sepsis, a condition in which the body's inflammatory response rages out of control in reaction to an infection, often leading to organ damage or failure. There's no proven cure for sepsis, which strikes well over 1 million Americans a year and kills more than 700 a day.

A team of surgeons says it has repaired the genitals of a serviceman severely injured by an explosion in Afghanistan. It's the first time a penis has been transplanted to treat a war wound.

Doctors at Johns Hopkins Hospital in Baltimore say 11 surgeons were involved in the 14-hour surgery in March.

There's encouraging news for cancer treatments that stimulate the immune system to attack cancer cells. A widely used immunotherapy drug appears to be useful in a greater number of patients with lung cancer.

The drug called Keytruda, or pembrolizumab, is already prescribed to a group of patients who have a type of malignancy called non-small cell lung cancer. It's the principal form of lung cancer and found most commonly in people who have smoked.

Doctors encounter all nature of odd things in their daily lives. Sometimes the stories end up as more than coffee-room chatter. Consider a case that spills over from the clinical to the culinary: the hot pepper and the horrible headache.

Federal health officials say a network they set up last year to identify deadly "nightmare bacteria" is helping control these germs, but the system would be more effective if more hospitals and doctors participated.

A new study from the Centers for Disease Control and Prevention focuses on particularly odious germs that live primarily in the gut and cannot be killed with "antibiotics of last resort," called carbapenems.

Medical marijuana appears to have put a dent in the opioid abuse epidemic, according to two studies published Monday.

The research suggests that some people turn to marijuana as a way to treat their pain, and by so doing, avoid more dangerous addictive drugs. The findings are the latest to lend support to the idea that some people are willing to substitute marijuana for opioids and other prescription drugs.

Michael Robertson was on his summer vacation a few years ago and had just proposed to the woman who would become his wife when he decided he needed to see a doctor.

"I'd been having symptoms for a few months but it was during an intense work period, drinking too much coffee, not getting enough sleep, so I kind of chalked it up to that," Robertson says. Unfortunately, the doctor had a more dire diagnosis: stage 4 rectal cancer.

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