As Warren Zevon once said: Life'll kill ya. And that's something most Americans agree with.

Three nonprofits — NPR, Robert Wood Johnson Foundation and the Harvard T.H. Chan School of Public Health — teamed up to find out what U.S. adults thought were the causes of poor health. Turns out we think lots of factors are undermining our health on a daily basis — at least according to the results mined from responses from almost 2,500 people.

Here's the basic breakdown of what breaks down our health. These numbers are for the most frequently cited causes deemed "extremely important to health problems" and they exceed 100 percent (by plenty) because people could site more than one cause:

• Lack of access to high-quality medical care: 42 percent

• Personal behavior: 40 percent

• Viruses or bacteria: 40 percent

• High stress: 37 percent

• Exposure to pollution: 35 percent

When asked about incidents from one's childhood that had an extremely important effect on one's health later in life, respondents chose:

• Childhood abuse and/or neglect: 54 percent

• Living in a polluted area: 44 percent

• Poor diet: 44 percent

• Not getting vaccinated: 43 percent