 You might hear pretty frequently in media that somebody has a gene for a particular disease or a cancer gene or something but it's not really a gene they have or rather they've had that gene all the time but we haven't introduced a new gene but what has happened is usually that you've had one or a few of these SNPs single nucleotide polymorphisms so a single nucleotide has changed. One such example is actually two genes which says it's called BRCA, BRCA 1 or 2 and they're both fascinating and scary. It was one of the first obvious genetic cancers we found. If you have that gene variant it means that you have a virtual certainty of developing breast cancer and there's also going to be a very aggressive breast cancer that will likely make you die in your 40s or so and you usually find out because there is a horrible family tradition of all the women dying very young and that in today if you have that tradition in the family you're usually recommended by a genetic counselor to take these tests today. The only question is what do you do if they come back positive? Well in the particular case of BRCA there is a very easy but fairly invasive solution. You do a mastectomy so you completely remove both breasts and depending on your rates and everything you might also do hysterectomy so remove the womb. But the reason I want to say this there's been a lot of publicity to this lately. I think that this page more is 24 at the time and she wrote blogs and published this basically to make the public more aware of it in general in a particular if you have these hereditary patterns in the family you should take the tests. Angelina Jolie also underwent a double mastectomy and the good part of this that if you treat it this way you reduce the risk of cancer probably by 90 to 95 percent. So scary as it is it's an example of a disease that we have not cured but we can at least indirectly treat it with preventive care because we know you have the gene.