This article is concerned with analyzing and highlighting the conception of the body that is implicit in transhumanist visions. First, the article provides a brief approach to Transhumanism and explains its main postulates. Second, it is argued that Transhumanism underlies an idea of the body as a «repairable machine», which is comparable to the Cartesian mechanistic view of the body. Third, by way of comparison, the conception of the body from the phenomenological approach (specifically from Heidegger) is introduced to show how the body has an intentionality and intersubjectivity, and that the human being is always a bodily existence anchored in the world. Transhumanism seems to ignore such aspects in its proposals and continues to think of the human being in a split way (mind and body), as two substances that interact in a causal way.