Lemons can do much more than flavour the water. The citric acid found in lemons help to maintain proper body pH. If the pH of the body fluids is alkaline or basic, the body systems function normally. Certain foods like meat, dairy and sugar tend to make the body more acidic. Drinking lemon infused water helps to neutralise the acidity. You can add some mint or basil leaves for added flavour.
So refreshing and can be drunk all day long!!!