When the water is poured on the stones, this fills the air with humidity, causing copious sweating. In the Nordic countries, this is followed by a bath in freezing water, while at the Sensory Spa it is followed by a cold shower or mist. The most evident effect of the high temperatures of the sauna is diaphoresis: the heat causes the user to sweat, and toxins are eliminated through the pores. During a session, about half a litre of water is lost through sweat, but the liquids expelled are quickly reintegrated by drinking in the relaxation area and tisane corner. The sweating helps to expel toxins and waste from the body, thus purifying it in depth. The rise in body temperature also has a series of effects on the muscles, which relax, thus relieving tension. Heat also facilitates the elimination of waste that fatigues the muscles. This detoxing process also regards the mind: as the body relaxes, so does the mind, helping guests to leave their concerns behind. The sauna is not recommended for people with heart or blood pressure problems.