dr. holly phillips has the science behind all the sneezing and wheezing.oing the happy dance these days? i bet they got lots of business. >> just like the flower stores kick in around valentine's day, the allergists have april and may to count on. right now, about 44% of the united states is in the medium to high level of pollen count. a number of states in the red zone with high levels. michigan, pennsylvania, parts of new york. >> another year of it's the worst season ever, right? >> it is. you know what, that's a fair argument to make. you know, because pollen counts have been rising for the last 20 years every year. with more pollen, people have more allergies. each year we can say allergy season is the worst ever. >> tell us about the hygiene hypothesis. >> more people than ever are actually suffering from seasonal allergies. about 30% of adults. 40% of kids. there are a number of theories. one has to do with the hypothesis. that as a population, we live in more sterile and urban environments as opposed to rural environments. the wilderness. we would

rounds" with cbs news contributor holly phillips and dr. neil roth. he's a sports team specialist and has served on the staff of several teams. concussions. dominating all levels of the sport. the cdc plans a rigorous evaluation of the risks of tackling in youth football. one study found one in 30 players ages 5 to 14 will suffer a concussion during any one season. i still think despite all the talk some people don't know how to evaluate if they've had a concussion. what is it? >> there's increased awareness. that will help our young people, athletes. it will clear up misconceptions. concussion actually comes from a hats inner-- from a latin term that means to shake violently. that's essentially what it is. sudden blow to the head. our brain is soft tissue. it is cushioned by the cerebral spinal fluid inside of the skull. the impact from a sudden blow to the head can jolt the brain or sometimes physically move it within the skull. that results in bruising, damage to blood vessels, damage to nerves. and the ultimate effect of that is that the brain doe

dr. holly phillips and neil roth on a surprising approach to easing chronic back pain. "cbs this morning saturday." look, the wolf was huffing and puffing. like you do sometimes, grandpa? well, when you have copd, it can be hard to breathe. it can be hard to get air out, which can make it hard to get air in. so i talked to my doctor. she said... symbicort could help you breathe better, starting within 5 minutes. symbicort doesn't replace a rescue inhaler for sudden symptoms. symbicort helps provide significant improvement of your lung function. symbicort is for copd, including chronic bronchitis and emphysema. it should not be taken more than twice a day. symbicort contains formoterol. medicines like formoterol increase the risk of death from asthma problems. symbicort may increase your risk of lung infections, osteoporosis, and some eye problems. you should tell your doctor if you have a heart condition or high blood pressure before taking it. symbicort could mean a day with better breathing. watch out, piggies! (children giggle) symbicort. breathe better starting with

dr. holly phillips. first up., president obama announced new plans to combat the prescriptions of opioid. here is jon on a program that is helping to save lives. >> i started on opioids, like pain pills. at 19 i was a full-blown heroin addict. >> what was that like? >> it was just terrible. i didn't take care of myself. i didn't take care of my kids. like, i lost custody of both of them. >> reporter: 25-year-old chelsea blackburn was still using heroin last june when she found out she was pregnant again. she decided to get help from the mcgee women's hospital from the university of pittsburgh medical center which started the pregnancy recovery center in 2014. the hospital had been inundated with pregnant heroin addict. 350 in 2012 alone. program director dr. dennis english. >> we were seeing increased number of patients who were addicted to opioids coming here to deliver and we saw these numbers increasing every year. >> reporter: it's an outpatient program and women are gradually tapered off heroin with this drug

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