About 10,000 boomers turn 65 every day, becoming eligible for Medicare on their birthdays. The Census Bureau says that the sheer number of boomers entering Medicare is affecting the uninsured rate for the whole population. That rate fell to 8.8 percent in 2016, down from 9.1 percent a year earlier, with most of the decline driven by the aging of the post-war generation. (Wall Street Journal)