Upload a document (Word or pdf is fine) that has a list of 3 potential presentation topics, in order of preference, with an explanatory sentence each. Prior to submission, you should do an initial literature search to help refine your topic. Use literature sources, peer reviewed articles, or pub med to find atleast 3 topics. You can discuss anything such as cancer, diabetes, down syndrome or whatever you find.
Ex: If you decide to talk about cancer, break down a type of cancer and how it relates to human physiology and physiological mechanisms.