Can a Doctor Who Doctor ACTUALLY EXIST? (pt. 1, Biology)

Grab your Sonic Screwdriver and be on the lookout for Daleks because we're out to see whether a time-hopping Doctor a la Doctor Who would be a physical possibility...or at the very least, whether a human could fit the bill and become a Timelord. There's A LOT to cover, from biology to technology to, you know, TIME HOPPING, so it'll have to be done in chunks. This time, we're taking a crack at Doctor Who's BIOLOGY. The Doctor has an interesting set of characteristics, but could a human match those? The answers will surprise you!