Nearly 1 in 10 younger adults could have plaque in their arteries

Nearly 1 in 10 younger adults have plaque in their arteries, according to a study of almost 17,000 people, New Scientist reports. The buildup, called atherosclerosis, can narrow arteries and reduce blood flow, potentially leading to heart attacks or strokes. A researcher who wasn’t involved in the study says it is already present in a “meaningful fraction” of people in their 20s and 30s.