As founder of Longevity Vision Fund, I am often asked about the most promising life extension breakthroughs, from early cancer diagnostics to human avatars and everything in between. The simple answer is that there are many — but that’s probably not the kind of answer you were looking for!

Instead, let’s look at the latest longevity breakthroughs working on each of the five major levels of biological organization (cell, tissue, organ, organ system and organism) and what they each aim to accomplish.