I find this extremely fascinating because a spiritual friend and mentor once told me that every time you sleep with somebody you are taking on a part of them within you. I thought of this as a powerful metaphor, that we were keeping a part of them energetically. Needless to say, it made me reflect on certain things from my past and this whole analogy really made a lot of sense. But, to learn that there is actual scientific proof to back this up and that it is a physical thing, that is more than just energy. The idea that as women we are capable of taking on actual physical DNA from the men that we sleep with, was an extremely eye opening piece of information to stumble across.