Israeli Prime Minister Benjamin Netanyahu says that he has undergone treatment for prostate cancer. It was his first public acknowledgment of the diagnosis. He said that roughly a year and a half ago he had prostate surgery. Then two and a half months ago, his doctors discovered and treated a small tumor at Jerusalem’s Hadassah Hospital with radiation therapy. That was not announced at the time. The 76-year-old Israeli leader said Friday that he requested a delay to the announcement “so that it would not be released at the height of the war” against Iran.

A new study finds the worrisome rise in colorectal cancer deaths among younger adults is concentrated in people with less education. That suggests socioeconomic factors could be driving the problem. The researchers found that over the last 30 years, the rise in colorectal cancer deaths in young adults occurred almost entirely in people with less than a four-year college degree. Of course, getting a college degree doesn’t protect you from getting colon cancer. Rather, experts say, people without degrees tend to earn less money, have poorer diets, exercise less and get less medical care. The paper was published Thursday in JAMA Oncology.