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Water The Liquid of Life All the Water in the World 3/4 of the Earth is covered with water. 97% of this water is salt water. 3% is fresh water. 2/3 of the fresh water is trapped in the polar ice caps. Only 1% of the water is useable. Water in the Human Body Transports nutrients and wastes. Lubricates joints and organs. Aids in digestion. Helps control body temperature. Plays a role in synthetic reactions. Assists in removing wastes. Transportation Our blood is . . . The body’s main transportation system. 83% water. Blood carries . . . Nutrients Hormones Enzymes Oxygen Other materials Lubrication Water lubricates . . . Joints. Organs. Fluids between internal organs. This helps . . . Reduce friction within the body. Ease movement. Digestion Water helps . . . Break down certain foods. Transport foods through the digestive tract. Temperature Control Water . . . Changes temperature slowly. Stores heat. Helps regulate body temperature. Synthetic Reactions Water aids in . . . Digestion of protein and carbohydrates. Building hormones and enzymes. Waste Removal Water helps . . . Transport wastes through kidneys and intestines. Remove waste through perspiration and the air we exhale. Reaching a Balance Adults typically need 6 to 8 cups of water or fluid each day. Amount depends upon: Body size. Level of physical activity. Age. Overall health. Climate. Water Sources Beverages we drink: Water, fruit juices, milk, and decaffeinated beverages are good choices. Beverages containing caffeine or alcohol can cause fluid loss. Water Sources Foods we eat: Fruits and vegetables are good sources of water. Meat, fish and chicken also provide water. Grain products offer a minimal amount of fluid. Our Water Supplies Tap water from: Public water systems. Private water supplies. Bottled water. Public Water Systems Supply water to at least 25 people or 15 connections for at least 60 days per year. Must follow set regulations. Private Water Systems Include wells, springs, cisterns. Are impacted by few regulations. Water users are responsible for the quality of their water. Testing at least once a year is recommended. Bottled Water Popular consumer item. Regulated through the Food & Drug Administration. Regulations impact quality, processing and labeling. Water Wellness Each of us can protect our water supplies. Follow these tips: Handle chemicals and cleaning products with care. Keep your automobile in good working condition. Water Wellness Tips (cont’d.) Use fertilizers and pesticides wisely. Limit soil erosion. Always conserve water. Water We depend upon it for health, and it depends upon us!!