Most people know that losing weight has numerous benefits, but making major lifestyle changes can be extremely difficult. For example, obese people are often at risk for injuries when they start a new exercise routine, which can set them back or ultimately cause them to give up on it. As a result, more and more people have been turning to weight loss medications for help.

In the last couple of years, a new class of weight-loss...

Since radiation therapy was first used to treat cancer over a century ago, clinicians have sought the right balance between maximizing the dosage for the best possible benefit and limiting damage to normal tissue. That research led to the current practice of fractioning, which is when a patient receives several partial treatments until the whole radiation dose is administered.

But in 2014, a breakthrough study showed that intense...