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Continue to ChatThose who work standing ... carpenters, sawyers, carvers, blacksmiths, masons ... are liable to varicose veins ... [because] the strain on the muscles is such that the circulation of the blood is retarded. Standing even for a short time proves exhausting compared with walking and running though it be for a long time ... Nature delights and is restored by alternating and varied actions. - Bernardino Ramazzini from https://whatsmyquote.com/quote/those-who-work-standing-carpenters-sawyers-carvers-blacksmiths-masons-are-liable-to-varicose-veins-because-the