“We are not fools when we tell you, “Get up in the morning and have a cold shower.” All we want is the blood to circulate through the capillaries, and there’s no way to open the capillaries but to take a cold shower. There’s no other way. In the West it is called “hydrotherapy.” In the East it’s called “ishnaan.” It’s a most beautiful thing. When you take a cold shower, the blood from inside hits the outside to cover the attack. In that fast movement, it opens the capillaries. When the capillaries are open, they feed your glands, and when a glandular system is well-fed, it secretes. The chemistry of your blood becomes perfect. That gives you a capacity to act, think, know; and it gives you grit, stamina. What is so bad about that?” Yogi Bhajan