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Do you feel tired,have a headache, feel dizzy or lightheaded? You may just need to be drinking more water...

The human body, which is made up of between 55 and 75 percent water (lean people have more water in their bodies because muscle holds more water than fat), is in need of constant water replenishment.

A person would have to lose 10 percent of her body weight in fluids to be considered dehydrated, but as little as two percent can affect athletic performance, cause tiredness and dull critical thinking abilities. Adequate water consumption can help lessen the chance of kidney stones, keep joints lubricated, prevent and lessen the severity of colds and flu and help prevent constipation.

Health benefits of water 

Water is crucial to your health. It makes up, on average, 60 percent of your body weight. Every system in your body depends on water.

Lack of water can lead to dehydration, a condition that occurs when you don't have enough water in your body to carry on normal functions. Even mild dehydration - as little as a 1 percent to 2 percent loss of your body weight - can sap your energy and make you tired. Dehydration poses a particular health risk for the very young and the very old. Signs and symptoms of dehydration include: 

• Excessive thirst 
• Fatigue 
• Headache 
• Dry mouth 
• Little or no urination 
• Muscle weakness 
• Dizziness 
• Lightheadedness

How much water do you need?

Every day you lose water through your breath, perspiration, urine and bowel movements. For your body to function properly, you must replenish its water supply by consuming beverages and foods that contain water.

So how much fluid does the average, healthy adult living in a temperate climate need? The Institute of Medicine determined that an adequate intake (AI) for men is roughly 3 liters (about 13 cups) of total beverages a day. The AI for women is 2.2 liters (about 9 cups) of total beverages a day.

So basically keep hydrated and try and drink as much water as you can and you will feel the difference in your energy levels and overall wellbeing!