Gallup staffer Alyssa Davis ends the year with Gallup's Top 10 discoveries on American well-being for 2015.

In 2015, the uninsured rate among U.S. adults has continued to decline, with a drop from 11.6% to 13.4%. Another discovery on the list is the increase of obesity in the U.S., with 27.7% rate of obese adults. Americans 65 and up have seen the biggest rise in obesity since 2008.

Gallup found that an actively disengaged worker aged 40 to 49 costs his or her employer 85% more in lost productivity because of unhealthy days than an engaged employee in the same age range.

 Young black males as a group have higher unemployment, lower graduation rates, less access to healthcare and higher incarceration rates than other groups in the U.S. And in 2014, the deaths of several young black men during incidents with police became headline news. 
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