younger age than any other ethnicity with 46% of all black women diagnosed with high blood pressure. dietary guidelines suggest less than 2,300 milligrams of salt a day but lasagna alone has 2,800 milligrams of salt, a fast food hamburger has 970. >> some people would hold the goggles out here and we said no, it goes right up against your eyes. >> reporter: dr. brennan spiegel knew virtual reality would have the greatest impact on changing behavior. >> you don't realize how it can just nudge your brain, take hold of the emotional centers and not let go. >> reporter: after 12 weeks in cedar sinais medical center program this group's average blood pressure dropped seven points with some people's systolic blood pressure dropping as much as 57 points. >> i am modifying and i am changing. >> reporter: so now juanita cannon has seen the light. >> i'm just amazed. >> reporter: about salt. mireya villarreal, cbs news, los angeles.