The study involved about 2000 people.They were the children of men and women who took part in a major research project in Massachusetts called the Framingham Heart Study.

• 研究涉及了2，000人，他们是参加过在马萨诸塞州的一个重要研究项目的人们的子女,该项计划被称为弗雷明汉心脏研究。