Machines that can give doctors a better look inside patients’ organs can make treating disease so much more efficient. Experts at the Mayo Clinic are using an innovative 4-D tool to look deeply into a patient’s heart during cardiac procedures. Doctors say it’s making the procedures more efficient and easier on patients...

New information about how contagious the Delta variant of COVID-19 is has prompted the CDC to bring back the recommendation that people -- even fully vaccinated individuals -- should wear masks in indoor public spaces, especially if they live in areas where COVID-19 cases are surging...

A tragic accident destroyed a man’s intestines and doctors said an intestine transplant was the best solution. But intestine transplants are extremely risky and rare. Fortunately, this one worked, and the man is back on the job—living a normal life...

Doctors do a complex, but life-saving procedure to successfully transplant a dad’s kidney into his infant son. It was the first time doctors had attempted the operation, and the results are both heart-warming and uplifting...

Heart rhythm disorders can be extremely dangerous if left untreated. A patient who previously had to have rescue teams regularly treat his heart rhythm disorder gets an innovative procedure that takes care of the problem...

The Delta variant is now the most common form of COVID-19 diagnosed in the US and the main problem with it is that it is so highly contagious, spreading very easily to others...

Direct sunlight has been used to treat some difficult-to-control skin conditions like psoriasis and eczema, but patients should be careful they don’t get too much sun and put themselves at risk for skin cancer...

Surgeons using new valves in the lungs can improve the quality of life for patients with advanced emphysema without the risks of complex lung surgery...