and actress jessica alba -- what do they all have in common? >> they're all famous. >> they all have money. >> i'm not sure. >> did they all graduate from georgetown? >> actually, they all have asthma. >> asthma's a lung disease which causes the airways, which are the breathing tubes in your lungs, to become inflamed. when they're inflamed, they become small, and it becomes harder for air to get to your lungs. >> that's called an asthma attack, and it's not pleasant. >> people who have asthma, therefore, experience symptoms like wheezing. that's the sound of air having trouble getting into your lungs. they feel short of breath like it's hard to breathe, and they can even feel some chest pain. >> so, what's the connection between asthma and smoking? >> if you were to smoke when you have asthma, that's even worse. it can definitely trigger an attack. >> in fact, dr. carroll says it can be deadly. >> well, if you have asthma, you shouldn't even start smoking, but if you have asthma, and you smoke, you should quit as soon as possible. you are takin

. >> let's go with jessica alba's look. >> she has 5.5 million followers on instagram.he white dress that we found at burlington. threw over a vest from new york & company. we pulled the look together. it's so easy. for any woman. any woman can do this. >> rebecca looking great. thank you. next beyoncÈ 40nb million followers on instagram. anything she wears people want to try to copy and be the queen bey. this is the summer outfit. >> this is her go-to look for the beach or the pool. it's about the bright color. here is what we recreated with a floral skirt. beyoncÈ is about the accessories. amanda knows how to work it. this is a clutch from charming charlie. we paired it with great two-tone sunglasses. it pulls the look together. beyoncÈ is about the sunglasses. >> and john legend who looks great. especially with his wife. >> he has a relaxed look. he has the rolled up sleeves and pants. we can bring out randy who has a very similar look. we found a similar shirt and paired it with a pair of h & m pants. chrissy teigen is a great accessory. there's a thompson tee that

. >> jessica alba's look. >> yes.ebecca. all right. >> this is rebeck wacha. >> i love it. >> an easy look again. so we put the white dress we found at burlington threw over a vest from new york & company and made it look all pulled together. awesome. so easy. this is for any woman. any woman can do this. >> rebecca looking great. thank you. next beyonce, 40 million followers on instagram. anything she wears people want to copy and be the queen bee. this is her summer outfit. >> yes. summer go-to look for the beach, for the pool. it's all about that bright color. so here is what we re-created with a floral skirt. but beyonce is all about the accessories. amanda knows how to work it. this is a clutch from charming charlie but we paired wit these great two-tone sunglassing from hawkers. it pulls the look together. beyonce is all about accessories. >> and jop legend who always looks great, especially when you have christy tegan next to you. >> he's got the rolled-up sleeves and pants. randy has a similar look. we walked