BREATHING
The breathing exercises can have profound effects and should be practiced exactly as prescribed. Make sure to always perform them in a safe environment, and without force.
Never attempt the exercises before or during diving, driving, swimming, or taking a bath, or in any other environment where passing out could potentially cause injury. The simplest way to avoid risk is to sit on a couch or floor.
The breathing exercises may cause tingling sensations and/or lightheadedness. If you’ve fainted, that means you went too far, and have to take it easier next time.
COLD EXPOSURE
The cold is a powerful force. We strongly advise you to gradually build up the exposure, both in terms of temperature and duration. Do not force anything; listen to your body. If not practiced responsibly, cold exposure can have serious health consequences, including hypothermia.
Do not practice the method while pregnant, or if you have a potentially debilitating condition, such as epilepsy. If you have cardiovascular issues, or any other medical condition, always consult a doctor before starting with the Wim Hof Method.