new research from carnegie mellon universit says interacting on facebook could make you just as happy as if you got married or gave birth. sure, life is fine but in 1900 facebook users in 91 countries, the biggest impact was when someone they knew interacted post or comment. in fact, the study found 60 positive comments can boost your mood as much as a marriage. >> life is a french fry and friends of the ketchup. >> instead of writing your vows, write a few words on someone's walls. those aren't the only stories trending. >> we all love free stuff. >> which is why we love september. >> freebies. eat, drink, walk around in that's trending now. >> if you're a teacher enjoy a free taco at rubio's. teachers and everyone else can get free breakfast sandwh through saturday when you download their app. >> for kids ihop through the 25th. eat sunday this month free entre, buy one, get one deal. >> thank you, come again. >> i love it. >> to burn up all that free food, why not take take in a little culture. september 24th there's free admission to national parks as well as select museums across