In today's Health Alert, we learn how healthy our heart's are, how prostate cancer screenings are changing and how cell phone affect moms to be.

Want to know how healthy your heart is? Now there's an app for that.

In clinical trials, Cal-Tech researchers demonstrated that the camera on your smartphone can non-invasively measure the expansion and contraction of artery walls to calculate blood flow from the heart. So, instead of a 45-minute scan from an ultrasound machine you can get the same data by simply holding your phone up to your neck for a minute or two.

PSA routine screening guidelines may be changing again. Two important prostate cancer screening trials provide evidence that screenings significantly reduce prostate cancer deaths.

Still, questions remain about how to implement screenings so that the benefits outweigh the potential harms of over diagnosis and over treatment

Are pregnant moms who spend a lot of time on their cell phones harming their unborn babies? The answer is NO. A new study finds no adverse effects on baby's language, communication and motor skills associated with moms' frequent use of mobile phones.