There was a time I was taking lithium, before it became the stuff batteries are made of. As my doctor explained it at the time, the efficacy of the medicin was discovered because it used to be in the water supply in certain locations, but I find now that this was probably incorrect: Grok 4 just gave me a complete rundown of lithium's history as a drug, and this definitely did not include spiking the water supply!
As far as disease is considered, I've long since removed doctor's visits from my agenda, except for a few medications I consider effective in limiting the amount of DMT my brain produces. Regardless of your perspective on this, for me being plagued by high levels of DMT is a dis-ease I am not prepared to accept.