Water Fast

Currently starting a ten-day water fast. I've been a little down mentally lately. I think it's best I give my body a flush/reset. My skin already looks great. It looks very healthy and clear lol. I don't really have skin issues anyway, but something about this fast has it looking a lot more radiant than normal. I haven't done a water fast since this summer. I find that fasts help me get a clear mind when I am overthinking. Do any of you fast? If so, why do you do it?