Dehydration can lead to a loss of strength and stamina. It's a main cause of heat exhaustion. You should be able to reverse dehydration at this stage by drinking more fluids. If dehydration is ongoing (chronic), it can affect your kidney function and increase the risk of kidney stones.
[I copied this from the internet, but hope this helps!]
unit that contains two or more atoms covalently bonded together but that has an overall charge is called a(n) polyatomic ion. Many ionic compounds contain such units.