Since all living things need it， and it makes up two-thirds of our bodies， it seems obvious① that water is vital② to our health. Most people， however， drink fewer than the eight recommended glasses each day. An alarming one-third drinks no water at all！
So why is drinking enough water so important？ A minor water deficiency③ can lead to headaches， sleepiness， and moodiness， while prolonged dehydration④ can cause high blood pressure and other serious problems.
Drinking water helps our bodies in a variety of ways. It helps us get rid of toxins， which enables our kidneys to do a better job， and it helps prevent bladder infections. It improves digestion and helps us develop antibodies. Finally， water is a great moisturizer⑤ and gives our skin a healthy glow.
Drinking water throughout the day is an important habit to pick up. For your health， give this simple substance the importance it deserves.
① obviousadj. 明显的；显著的；平淡无奇的
② vitaladj. 生命的；维持生命所必需的；极其重要的，必不可少的
③ deficiencyn. 不足，缺乏；缺陷，缺点
④ dehydrationn. 脱水；干燥；极度口渴
⑤ moisturizern. 润肤膏(或霜、露)
喝水有益健康
既然所有的生物都需要水，而且水占了人体的2/3，所以看起来很明显水对我们的健康极为重要。然而，多数人的饮水量比建议的每天8杯水要少。更令人担心的是，有1/3的人甚至一口水都不喝。
为什么喝足够的水这么重要呢？轻微的水分不足会导致头痛、嗜睡和情绪低落；而长期脱水则会造成高血压和其它严重问题。
喝水在许多方面都有助于我们的身体。它帮助我们排出毒素，使肾脏运作地更好，它也能避免膀胱受感染。水能促进消化并帮助我们产生抗体。最后，水是最好的保湿剂，可赋予肌肤健康的光泽。
全天候饮水补水是个必须养成的重要习惯。为了你的健康，给予这个简单物质足够的重视吧。