system
Given the following post, respond as if you're commenting on Reddit:
human
[Fullmetal Alchemist]How is Alchemy used to heal?

How do Alchemist heal people? Do they accelerate the growth of cells in the body to close wounds and etc? Doesn't this ignore equivalent exchange?.
gpt
This depends on the Alchemy. 

Amestrian generally can't heal except with the Philosopher's Stone because the Philosopher's Stone uses a powerful energy source to "violate" Equivalent Exchange. 

Alkahestry from Xing can because it's based on the principles of chi, the natural flow on energy in everything from mountains to humans. It uses that chi to speed up natural human regenerative processes, strengthening and healing the body.