here's abc lindsay davis. >> reporter: according to one study, 7 of 10 teens have accidentally stumbled asking is the average teen really ready for this? >> hard-core porn. right on my phone for anybody to access. >> reporter: we also suspected porn can't be good for the teenage brain but tonight a new study. is there now scientific evidence to back that up? >> when you put porn into google, what does he think is going to come up? probably pictures of make a naked woman. he's account putted into a woman of sexual violence. >> reporter: gail, the author of a book called "pornland" says for this the average teenage boy porn is his first formative impression of sex. >> he doesn't have a reservoir of his own experience of sexuality with other people. he's probably never had sex with another human being. >> reporter: and not just boys. this girl was only 12 years old when she shockingly admitted she's not only seen porn but she understood all the innuendo. >> it says if you dress this way you'll be treated well or you'll be powerful. sex is powerful. >> reporter: wshe's part of thi new order

the same fight being fought in albuquerque, played out by lindsay davis last week. and we ask you if there will ever be a middle ground for this age old debate. do we have any hope here? medical says: and we have melanie: >> what do you think? ground? >> if we're really talking middle ground. abortions at 20 weeks. it sounds very middle. but the discussion shouldn't be about middle ground. it should be about human rights, and this idea that abortion is an american freedom. i think that's perverse. women's empowerment shouldn't be reduced to be able to kill our children. this idea that we're empowered through abortion is a lie. are women being empowered by boyfriends taking them to a clinic saying you have to do this, and bosses saying you're not going to get the promotion. there are so many cases but in every case, you see in the more severe cases, desperation, i have to do this. we can do better as women than to kill children, especially these children that are feeling the pain. [ talking at the same time ] >> antoinette, what are the consequences to women's rights

lindsay davis abc news new york. >> perhaps we will soon. for second time in recent week scientist found amphetamine like compound in diet supplement. fda found it in 9 of 21 product tested all of them containing this product that is a shrub in texas and m ex co-fda would not release the names of the supplements tested but they were all marketed for such things as wet loss. energy boosting and food stabilization. harvard researcher is concerned that the fda has not issued any warnings even though it is known about this since july. >> new study found men nose are 10% larger than women noses that's not a surprise really but there is an interesting reason why. university of iowa researchers say it is due to different physical build and energy demands male of have leaner muscle mass. requires more oxygen to maintain and build muscle tissue. male and female have the same nose size until about age 11. at that point male spend more energy and nose sizes become prosecute portionately larger. >>> now we know. coming up next. check in again with micha