I have heard that there are hot springs in Greece which contain high amounts of ions and minerals (namely Lithium) that some people believe has beneficial impact on mental health.
I can't verify/know the validity of those claims but I am curious if anyone knows the measurements of the actual grams of mineral/gallon amounts of various minerals that are in these human usable hot springs?
Answers to this question are any hot spring of your choice that has a link claiming to have health benefits and the actual scientifically measured ratios of its (grams of mineral)/gallon or liter of water.