What condition do scuba divers commonly experience due to breathing dry air?

Breathing dry air while scuba diving can lead to dehydration because the air in scuba tanks is typically drier than the air we breathe on the surface. When divers inhale this dry air, moisture is drawn from their bodies, particularly from the respiratory system, which can contribute to a loss of fluids. This process can lead to dehydration, impacting a diver's physical performance, cognitive functions, and overall health.

It's important to maintain proper hydration before and during dives, as dehydration can also increase the risk of other issues, such as decompression sickness. By understanding this relationship, divers can take proactive measures, such as drinking plenty of water before diving, to counteract the effects of breathing dry air and ensure a safer diving experience.