system
Given the following post, respond as if you're commenting on Reddit:
human
[Doctor Who] Why does The Doctor always start flying the TARDIS before regenerating?

I'm talking mostly about NuWho, as I am less versed in the classic series. Before every regeneration, The Doctor always starts flying away only to regenerate and crash. Why not regenerate outside the TARDIS, or inside but not mid-flight?
gpt
The Doctor doesn't have control over her regenerations. As such, a lot of energy is released and she likely wants to get as far away from other people as she can. The energy release probably messes with the TARDIS though and causes the crash.