Today, solar water heaters are becoming increasingly popular, some families with heaters and hot boiled food, boil water to drink. Municipal Health Bureau of Health Education experts reminded the public this practice is bad for your health.     Municipal Public Health Bureau health education experts, the solar hot water is not drinkable.     Though to enter the water heater is clean tap water, but the metal used to make the water heater piping is usually not in accordance with material standards of the kitchen to strictly limit the content of harmful substances. Water heater pipe may contain excessive cadmium, manganese, lead, arsenic and other metal poisons in the long-term heating process, the poison will be dissolved in water, such hot water used to wash, bath and other topical is generally not What is the problem, if long-term used to cook food, boil water for drinking, over time harmful to human health damage. Such as mercury, lead, cadmium can inhibit the activity of enzymes containing thiol, protein synthesis will reduce the body's growth and development. Long-term consumption of water containing harmful minerals or ions, can lead to Alzheimer's, hypertension, arteriosclerosis, and children with developmental disorders and disease, in serious cases, can cause fetal malformations in pregnant women.