Drinking regime

Why is water so important? Water accounts for 50-70% of the total body weight (depending on age, weight, climatic conditions) and is distributed in the body as follows: a) intracellular fluid (ICT) about 60%, the predominant ion is potassium; extracellular fluid (ECT) about 40%, the predominant ion is sodium. Major changes in body fluid volumes or electrolyte concentrations lead to cell function disorders and thus to disorders at the level of organs, organ systems and the whole body. Severe changes in the internal environment can cause even death. It significantly affects metabolism at all levels. It is a carrier of minerals, trace elements and other elements.  All chemical reactions in our organism occur through water. The main part of our blood is water. Blood is important for the transport of important substances, e.g. oxygen, glucose. It is a major component in the elimination of harmful substances with the help of kidneys, which arise during metabolic processes. Water is the most important component for thermoregulatory processes (it maintains constant body temperature) and protects the body from overheating.   Lack of water thickens the blood, thereby reducing its pressure (it can lead to collapse). Blood oxygenation becomes worse and thus oxygen delivery to all tissues will deteriorate. Thickened blood is more burdensome to the heart (increasing its frequency), decreasing capillary flow and peripheral blood circulation (higher risk of frostbite and life-threatening thrombosis). Drainage of harmful substances becomes worse. Regardless of the type of physical exercise and condition we need to drink regularly. Increased fluid consumption during higher physical activity results from the fact that most of the energy, up to 80%, is converted into heat. To prevent the body from overheating, body temperature is reduced by sweating. One litre of vaporized sweat helps to eliminate up to 2400 kJ of body heat.