Whether you’ve always been close, or wish you got along better, here’s how to bolster your connection.

Grail, which makes a blood test for cancer, said a vendor’s software issue caused inaccurate letters to be sent to about 400 customers last month.

A large “de-escalation” trial suggests that tens of thousands of people annually may be able to rely on only chemotherapy and surgery to treat their illness.

The H5N1 virus poses “a great unknown threat” to birds and humans alike. Understanding and thwarting it begins with excrement collection.

The president’s choice for the job, Dr. Mandy Cohen, would replace Dr. Rochelle Walensky, who is stepping down at the end of the month.

Doctors at the Allina Health System, a wealthy nonprofit in the Midwest, aren’t allowed to see poor patients or children with too many unpaid medical bills.