There are certain supplements, things like Shilajit, for instance... which mainly has the active ingredient folic acid, which is known to, for instance, increase things like FSH (follicle-stimulating hormone), which, in women, is going to increase certain aspects of egg growth ... It's going to stimulate certain aspects of fertility; it's pro-fertile. And in males, it can make for more sperm production and more motile sperm.