For their 4th challenge the guys took a cold shower every day for a month in hopes of enjoying a plethora of health benefits including an increase in brown fat, deeper sleep, and an ability to handle the colder winter temperatures starting to arrive. They would take their showers as normal, but once clean, turn the temperature as cold as it would go for anywhere from 30 seconds to 2 minutes. But would both guys catching a mid-month cold affect the challenge?

Some of the topics discussed:

• What part of the body is best to hit with cold water when you’re starting out?
• How can you fight the common cold, and when is it time to take antibiotics?
• Why shouldn’t you take a cold shower if you’re fighting an infection?
• What made Alex turn the corner on Bulletproof Coffee?
• What time of year is best for cold showers?

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