Question: what are the effects of drinking too little water?
Answer: Persistent Bad Breath. Water is essential for saliva production and helps rinse away bacteria so you can maintain healthy teeth and gums. ... 
Fatigue. Not drinking enough water can cause an overall fluid loss in the body. ... 
Frequent Illness. ... 
Constipation. ... 
Poor Skin Health. ... 
Sugar Cravings. ... 
Decreased Urination.