The massively popular workout program has struck a chord with fitness buffs and weekend warriors alike. While the program is lauded for intense training that promotes a strong sense of community, opponents say the workout could cause serious injury. Dr. Christopher Visco, director of sports medicine at N.Y. Presbyterian, Columbia University Medical Center, joins the “CBS This Morning” co-hosts to discuss the issue. Source

Daily health headline: New drug guidelines could improve breast cancer survival rate, does nutrition education get kids to eat better, and more top stories. Source

Air pollution is now the fourth biggest threat to health in China. Seth Doane shows how the country’s smog problems are creating a market for a number of smaller-scale gimmicks. Source

Communities across the country are struggling to control the heroin epidemic and the spike in deadly overdoses. One tool that’s gaining ground with police departments is an emergency antidote that’s already saving hundreds of lives. And, Alison Harmelin reports, New York City is signing on. Source

A Pennsylvania couple fought to be parents with the use of in vitro fertilization. Their baby was delivered 12 weeks early and weighed 13-ounces. Now, as WHP-TV’s Donna Kirker-Morgan reports, “Warrior” is over five months old, weighs over seven pounds and is getting ready to go home. Source

A new study reveals that your risk of certain cancers may have a correlation with where you live. The research indicated that people in poorer areas were more likely to have certain kinds of cancers as compared to residents in wealthier neighborhoods, and vice versa. CBS News medical contributor Dr. David Agus explains to the “CBS This Morning” co-hosts. Source

New data on Malaysia Airlines flight 370 suggest the plane ran out of fuel and crashed into the Indian Ocean. Anthony Mason reports. Source

Costs have spiked, and it’s a trend that’s not expected to change anytime soon. Michael Santoli, senior columnist at Yahoo Finance, talks about what’s behind the rising costs with the “CBS This Morning” co-hosts. Source

About 100 homes near Yosemite National Park are under a mandatory evacuation order as a wildfire grows, while a wind-whipped fire burned 248 square miles in Alaska. Norah O’Donnell reports. Source

“CBS This Morning” takes a look at some of the headlines from around the globe. Source