PhysicsPhysics can be considered[aut]Blezza Franco a Medical HumanityMedical Humanity, and more generally a Humanity: for this reason, it can make many powerful contributions to training and professional practice of the doctor of medicineDoctor, starting with his beginning training. This fundamental scienceScience of nature constitutes an excellent paradigmParadigm of rigour, generality and research methodology, and it offers various reasons for interest also through the mediation of PhilosophyPhilosophy. It is necessary to get out of the visions of PhysicsPhysics that are highly instrumental for the doctorDoctor, reasons that are also important and may require more in-depth training, to adopt an essential vision. In this paper, we bring some significant examples of issues in this sense, such as thermodynamicsThermodynamics, blood circulation, the main sense organsSense organs, the foundation of scientific psychologyPsychology, systems theory and the systemic approach, and we come to quantumQuantum and twentieth-century Physics regarding genetic mutations and molecular BiologyMolecular Biology. The historical dimension of the discourse turns out to be particularly valid and fruitful: in fact, some of thease great researchers were doctorsDoctor and physicists together, and many relevant historical episodes have always been, and continue to be, straddling PhysicsPhysics and Medical Sciences. The professionalism of today’s doctor has much to benefit from it.