Scientists say they've found a new way to help determine whether specific genetic abnormalities are likely to make people sick. That's a step toward avoiding a vexing uncertainty that can surround DNA test results.
A survey of U.S. cancer doctors finds nearly half say they've recently recommended medical marijuana to patients, although most say they don't know enough about medicinal use.
A large study is adding to evidence of a link between traumatic brain injuries and dementia later in life.
Researchers are testing new smartphone apps that push patients to take their pills using selfie-style videos.
