KAMC’s Allison Morrison and Kevan Smith weed out the facts from the fibs in Tuesday’s health news.

Fact or Fib? The economic cost of preterm births linked to air pollution in the U.S. totals over $4 trillion a year.

Fact or Fib? A new saliva test could detect concussions.

Fact or Fib? A new type of MRI may be more helpful in assessing long-term effects of abnormalities in the brain.

Watch the associated video to find out the answers.