cbs reporter barry peterson shows us how it works and why some patients think it's worth both the cost and the effort. >> it takes an hour. >> there's nothing unusual about the chemotherapy drugs mary is getting at this denver clinic. >> your chin strap. >> reporter: what's unusual is on her head a cold cap chilled with dry ice at 30 below. as it warnings a new one is strapped on tightly every 20 to 30 minutes. this goes on for 8 hours. >> it's not really pain. it is an overall feeling of i just want this off my head. >> reporter: in the most recent study, roughly 66% of women kept more than half of their hair. one theory is that it constricts blood flow keeping the chemo from representing the scalp. another is that it freezes many of the hair follicles and the chemo is simply shut out. there are concerns that blocking the chemotherapy could let cancer spread to the scalp. is it work? >> it is working. i have the majority of my hair. >> reporter: she gets moral support from her husband. yes. that's me. we are together on this journey. why is maintaining your hair important to a woman?

barry peterson, cbs news, cannonball, north dakota. >>> a valley teenager nearly crashed our 9-1-1 system and now he is facing computer tampering charges. detectives say the 18-year-old was able to change the code for a computer bug. he insists this was all an accident and he started playing with the bug, trying to find flaws in it. he says he also wanted apple pay him for finding problems within their operating system. >> it is a little disturbing that our system is as fragile as it is. the hacker found a bug in an apple device. he wrote an exploit around the vulnerability to make the phones call a certain number other and over again. >> well, when investigators found out the calls were coming from his smartphone, they meetthesigh. >>> notre dame prep should learn more this afternoon if they will be allowed to take part in the football season. the school fired the coach and lengthened the leaning director to decide whether to lift the ban. the former notre dame prep coach mark know less than told us he -- noel told us he did nothing -- told us he did nothing boston marathon bombings. in

. >> reporter: this patient mary wolf is a wife of cbs correspondent barry peterson. >> why is maintaining your hair important to a woman. >> i think it gives you a sense have of control, it gives you a piece of dignity. >> reporter: another cool cap that works by circulating coolant through the cap, neither one is covered by insurance and they can cost patients several thousand dollars. susan decided it was worth the cost. >> i can go out, and just be who i am and not have to breast cancer define me. >> reporter: cold caps don't work for all chemo drugs or some cancers carried through blood like leukemia. also tonight on the healthwatch new research suggests genetics may determine which women will experience, hot flashes. researchers at ucla studied data from more than 18,000 post menopausal woman. they found woman with gene var ant that is affect the brain that regulates estrogen were more likely to have hot flashes. doctors say thinks a important first step toward finding better treatments. >> the first study ever done to look across the whole genes for hot flashes and night sweats will

barry peterson, cbs news, near cannonball, north dakota. >> good news for home buyers. u.s. mortgage rates dropped this week moving toward historically low levels. mortgage giant freddie mac says the average 30-year fixed-rate mortgage is 3.47%. the lower rates are drawing more buyers to the market. the national association of realtors says the rate of people signing contracts to buy homes rose 1.5% last month. >>> all right. it's going to be a huge night for chicago. wrigley field will host a world series game for the first time in 71 years. the game isn't for a few hours but excited cubs fans are already arriving at the stadium. the cubs have not won the world series since 1908. and as it stands now, the cubs and indians are tied at one game apiece. it's a best-of-seven series. >>> time for a check now of our weather with roberta. >> what a fun day it's been. we kick-started our friday with lots of rain showers from the north bay into the santa clara valley. at this particular time the rain showers are isolated on the passage of the front itself. we have some light rain sh

barry peterson shows us how it works and why some patients think it's worth both the cost and the effort. >> reporter: there's nothing unusual about themo denver clinic. >> you want to do your chin strap. >> what's unusual is hon other head. a cold cap. chilled with dry ice to 30 below. as it warms, a new one is strapped on tightly every 20 to 30 minutes. this goes on for eight hours. >> it's not really pain. it is an overall feeling of -- i just want this off my head. >> in the most recent study, than half of their hair. one theory is that it constricts blood flow keeping the chemo from reaching the scalp. another is that it freezes many of the hair follicles and the chemo is shut out. there are concerns that it could let cancer spread to the scalp. >> is it working? >> it is working. i have the majority of my hair. >> reporter: she gets moral support from her husband. yes. that's we are together on this journey. >> why is maintaining your hair important to a woman? >> i think it gives you a sense of control. it gives you a piece of dignity. >> using these caps can cost a patient severa

. >> this patient mary is the wife of cbs correspondent barry peterson. >> why is maintaining your hairortant to a woman? >> i think it gives you a sense of control. it gives you a piece of dignity. >> there is another cool cap that works by circulating coolant through the cap. neither one is covered by insurance. and they can cost patients several thousand dollars. susan decided it was worth the cost. >> i can go out and just be who i am, not have the breast cancer define me. >> doctors say cold caps don't work for all chemo drugs or for cancers carried through the the blood. like leukemia. i'm stephanie stahl, cbs-3, "eyewitness news". >>> and there is a lot coming up on cbs this morning, saturday. jeff, jamie, join us live from new york with a preview, good morning. >> good morning to you, coming up the day's headlines plus a mountain of work that's that stretches generations. >> family trying to finish memorial, their father started 70 years ago. >> vacationed here for centuries, common tour inside the holy palace. and hear some of it papal past. >> all of that plus your eye opener,

peterson. this guy over my shoulder barry bonds looking for a job this morning. baseball's home run king will not return as the marlins hitting coach. bonds was in miami for only one season. the marlins were 27 of this in the makes in runs scores. giants and mets tomorrow for the wildcard game. i'm dennis o'donnell. see you tonight. >>> we are in ghirardelli square this morning where google is expected to make some big announcements this morning regarding new gadgets including new phones. >> reporter: a new report shows just how much overtime san jose police officers are working to cover our streets so is there a solution? why the mayor says there's an easy fix. ,,,,,,,,,,,,,,,,,,,,,, case after high end robberies across the bay area. the warning they're issuing this morning. plus, states of emergency >>> police get a break in case of high-end robberies in the bay area. the warning they are issuing this morning. >> plus, states of emergency declared in florida and north carolina as hurricane matthew moves in. >> exactly. and we do have the tracking course of hurr

peterson. this guy over my shoulder barry bonds looking for a job this morning. baseball's home run king will not return as the marlins hitting coach. bonds was in miami for only one season. the marlins were 27th in the majors in runs scored. wildcard, of course, is the giants and the mets tomorrow in new york. i'm dennis o'donnell. see you tonight. >>> the play of the day, from spain, an exhibition game between real madrid and the nba's oklahoma city thunder. >> carroll, oh, the pass and the dunk for hunter! >> yeah. madrid's hunter with the impressive dunk. they beat oklahoma city in overtime. >>> it is 6:25. police arrest more than a dozen members of a notorious bay area crime ring but the gang of thieves may not be out of business yet. >> reporter: a new report shows just how much overtime san jose police officers are working and it's costing taxpayers millions. why they say they have no other choice. ,,,,,,,,,,,,,,,,,,,,,,,, controversial comments about war veterans as the vice presidential candidates prepare for their only debate. >>> donald trump defends h

barry burbank. i just had to share this beautiful shot of peterson saw a swan reflecting off the water. just beautiful. we are seeing that moderate color in a lot of southern new england. we are starting to pass peek and a lot of northern new england. those pockets are extending into southern new england now. just a great stretch. going to be beautiful today. more moderate the farther south you go. 66 in boston. same in lawrence. 61 in manchester and mid to upper 60s for most of us. very m now. clear skies over us currently, notice some clouds building in through the valley and north and west of boston. what i anticipate is a band of clouds coming through this morning and sunshine breaking back out. this is all at the cold front that extends from eastern canada back down into the ohio valley. behind it, much cooler air. it's going to return to new england through the day tomorrow. out ahead of it t75 do 80. that dew point will drop during the second half of the day. 80 in plymouth. fall shy of records. records to beat today is 84 for the city of boston. partly cloudy tonight. 45 to 52.