Thomas Dyer Tuttle, Principles of Public Health
“ A cold bath is more stimulating than a warm bath. If, after you have taken a cold bath and rubbed yourself briskly with a rough towel, the skin becomes red and warm, a cold bath is best for you. But if, after you have taken a cold bath and rubbed yourself for not more than ten minutes, the skin appears bluish and cold, a cold bath is not good for you, and you should not take it. A cold bath should always be taken in the morning, just after getting out of bed, and a warm bath should always be taken in the evening, just before going to bed. ”
