Confusion & decrease in
cognitive functions
If the body is severely robbed of water, the sensation of dizziness or lightheadedness can evolve into the reduced ability to pay attention, remember things, make suitable decisions, and react.
Other less life-threatening but unwanted symptoms of dehydration include headaches, increased joint pain, bad breath, a lowering in the ability for your skin when pinched to shrink back to its normal position and this causes a wrinkly appearance of the skin. With longer term dehydration constipation is evident as water is needed for effective digestion and it helps keep your intestines working normally.
These dehydration effects are heightened when you exercise in strenuous aerobic or endurance sport activities. According to the American College of Sports Medicine, ≥ 2% body mass is a threshold beyond human performance can become impaired and this affects aerobic or endurance performance.