So we haven't got long to wait now until the newly regenerated 12th Doctors first adventure and I thought that seeing has he has just regenerated I thought that this would be a good opportunity to talk about the regeneration cycle. This was going to be a four part series, but due to time constraints I'm (unfortunately) going to have to make it just one post.
What does regeneration actually entail? And Why does The Doctor or any Time Lord for that matter need to regenerate? Well when a time lord comes to the end of their life (whether that be old age or being mortally wounded) the cells in there body repair themselves, but by doing so they have to change the way they look. So as the cells change, so does their appearance. As the 9th Doctor said "its sort of a way of cheating death". A time lord has 13 lives, so can only change 12 times (as confirmed by the 8th Doctor), but alas rules can be broken because the Time Lords gave the 11th Doctor a new cycle of regenerations. This also happened to The Master.
Below is a list of The Doctor's regenerations and why he needed to, plus the episodes that they occurred.
1st Doctor = old age. (The Tenth Planet)
2nd Doctor = forced to change by the Time Lords. (The War Games)
3rd Doctor = poisoned. (The Planet of Spiders)
4th Doctor = fell from a radio tower. (Logopolis)
5th Doctor = poisoned. (Caves of Androzani)
6th Doctor = severe head trauma. (Time and the Rani)
7th Doctor = shot several times and surgeons not understanding Time Lord biology when trying to remove the bullets. (Doctor Who The Movie)
8th Doctor = drank the elixir of life to save himself from permanent death from a crash thus needing to regenerate. (The Night of the Doctor)
War Doctor = old age. (The Day of the Doctor)
9th Doctor = absorbing the time vortex. (The Parting of the Ways)
10th Doctor = shot by a Dalek (healed himself, but didn't change as he transferred the remaining regeneration energy in to his severed hand). (The Stolen Earth)
10th Doctor = radiation poisoning. (The End of Time part 2)
11th Doctor = old age and got a new set of regenerations. (The Time of the Doctor)
If you want to learn more about each regeneration please go and watch the episodes that feature the regenerations as you won't be disappointed. You can buy a limited edition coffee table book style box set called 'Regeneration', but it is limited edition and I think theres only 10,000.
What are you thoughts? Drop me a comment and until next time.
Andy