For that tale, it is said that Musashi had never taken a bath in his life; however, in the past, bathing was a religious act, and according to records on bathing, during the Edo period, people began to go to public baths.
ここから、宮本武蔵が一生風呂に入らなかったといわれる（ただし沐浴は宗教行為であり、入浴歴史にあるとおり庶民が風呂にいくのは江戸時代から）。