Fluids are found inside cells and outside them (extracellular spaces), where they perform numerous biologically important functions; among these, the functions of:
- Transport (blood and lymph).
- Thermoregulation.
- Digestion.
The evaluation of the amount of water in the tissues is called the "state of hydration", the excess is called hyperhydration (rare), while the defect is called dehydration (more frequent).
The latter occurs when the loss of fluids (through urine, faeces, sweat, etc.) exceeds the introduction (generally provided by food and drinks).
The state of hydration is strongly correlated to the saline balance; not surprisingly, the alterations of these two elements (in quantity and proportion) are defined as hydro-saline imbalances.
Hydration is essential for maintaining the health of cells, tissues, organs, etc. Dehydration causes a loss of psycho-physical efficiency and even serious complications.
To counteract dehydration it is essential to listen to the stimulus of thirst and eat properly.
Sports sweating is a very personal factor; it is solicited differently based on: intensity of exercise, duration of effort, clothing, type of sport, environment, acclimatization and other factors.
Cycling is an activity that can easily cause dehydration. In fact, in addition to being characterized by very long training sessions, it exposes the subject to drafts that quickly evaporate sweat and dry the skin.
How can cyclists avoid dehydration?