Drink More Water Makes You Look Young You might think I’d have little in common with a camel, but we do share one useful skill: both of us can go for a very long time without water. Usually I start my day with a cup of tea, and then I might have a glass of water with my lunch and one with dinner — that’s about a liter of liquid in 24 hours. It feels like plenty, but in fact it’s not nearly enough. After years of suffering headaches and poor digestion I spoke to a neurologist about my regular headaches and a nutritionist about my poor digestion, and both told me I should be drinking up to three liters of liquid a day for my body to function at its best. I decided to conduct an experiment. What would happen if I drank the recommended amount every day for a month? The photograph of me taken the day I started this trial demonstrates perfectly - and rather terribly - what a lack of hydration does to a face. I am 42, but have to admit I look more like 52 in this picture, which is shocking. There are dark shadows under and around my eyes, which make me look exhausted, a large amount of wrinkles and strange reddish blotches, and my skin lacks any luster. It looks dead. Even my lips look dried-up. This is all classic evidence of poor hydration, apparently. Every system and function in our body depends on water. It flushes toxins from the vital organs, carries nutrients to cells, provides a moist environment for ear, nose and throat tissues, and eliminates waste. Not drinking enough means all these functions become impaired. So I decided to see how I would look and feel if I drank three liters of water every day for 28 days. The results were amazing.