As the West endures a megadrought, rising levels of arsenic — a known carcinogen — in the water supply of Colorado's San Luis Valley offer clues to what the future may hold.

A proposed change in immigration policy from the Trump administration could make it harder for immigrants to obtain a green card if family members use Medicaid, WIC or other federal medical benefits.

Suffering Americans seek medical marijuana as an alternative to opioids and other powerful pharmaceuticals. Though legal in 29 states, doctors say the lack of strong data make it hard to recommend.

Many older patients have problems that an emergency room is ill-equipped to handle, but often there is nowhere else to go. So some hospitals are adding palliative care consultants to the front lines.