During my undergraduate physics degree, I searched for biological links in everything I did. I think of the body as a sophisticated machine, with so many components working seamlessly together, some known, and some still not fully understood. As with any machine, sometimes things don't always work as they should, which then causes many health problems. I am particularly looking at the blood flow dynamics of melanoma, and how this can be related to cellular energy metabolism. Although cancer research is a huge field in medicine, biology and chemistry, not as much is known about the physics of cancer cells, and how they interact and behave with each other and the tumour vasculature. Because of the time-variability of biological processes, they have to be considered in a different way to some areas of physics, less assumptions can be made, and most processes are nonlinear. This realistic approach generally makes the subject quite difficult, but also very interesting.