Interesting story of a vanished disease called Devonshire colic, caused by drinking poisonous cider and relieved (in part) by soaking in the hot springs at Bath…
When the Cure for Poisonous Cider Was Hours of Bathtime
…because it turned out that the colic was actually lead poisoning from the cider-making equipment in Devon, and spending all day in water, like living in microgravity, causes bones to shed some of their mineral content.