What is a common recommended practice for divers regarding hydration before a dive?

Staying well-hydrated before a dive is crucial because proper hydration helps to prevent dehydration, which can increase the risk of decompression sickness. Dehydration can affect your body's ability to process nitrogen, which is essential for maintaining safe diving practices. When divers are dehydrated, their blood volume decreases, leading to an increase in the concentration of nitrogen. This can result in gas bubbles forming during ascent, which can be dangerous.

Hydration also supports overall bodily functions, including circulation and thermoregulation, both of which are important while diving. Ensuring that you are well-hydrated before diving allows for better physiological performance underwater and enhances overall enjoyment of the dive experience. Therefore, maintaining adequate fluid intake before a dive is a sound practice that divers are encouraged to follow.