Athletes have used some form of cold treatment for decades in the attempt to help their bodies recover from training or injuries.

New guidelines for hypertension mean many more Americans will be classified as having the disease.

With self-driving technologies advancing, many questions arise on just how far they’ll expand.

Removing invasive salt cedar reduces the risk of wildfires, but it also offers a chance to restore native plants and wildlife.

We looked at efforts to expand marijuana research — particularly whether use of the drug could help people suffering from post-traumatic stress disorder — with Dr. Sue Sisley.

An 8-week-old mountain lion cub is doing well at an Arizona Game and Fish Department facility after found being alone in a remote part of central Arizona.

The debate about climate change has partially been focused on its economic consequences. But what about national security?

With 2018 midterms looming and the public still unsure about the safety of election equipment, two U.S. senators, Sens. Martin Heinrich of New Mexico and Susan Collins of Maine, have introduced legislation to boost the cyber defenses of state election systems, including an a feature where members of the public try and hack the system on their own.

One week into November the National Weather Service has a better idea on how the La Nina churning out in the Pacific will impact Arizona's this winter.