No, the limescale in kettles contains calcium and has no connection with kidney stones, which result from other materials.

A - The jury is still out on this question and has been a topic for debate for hundreds of years. Like everything controversial, there exists the supporters and the opponents. One can eat too much ice cream and have a reaction to the preservatives in your fudge ripple. If absinthe is used with discretion, no doubt the supporters would favor the experience enjoyable. Good absinthe is made from an herbal mixture that contains only organic herbs and ingredients. See similar questions...

In order to comply with European Union (EU) limits, the thujone levels in commercially distilled absinthe must be10mg/l or less. The thujone levels in commercially distilled absinthe in Germany must be 30mg/l or less. an example: before you could consume a toxic amount of thujone from drinking commercial absinthe, you would have been suffering from alcohol poisoning. See similar questions...

In fact some chemicals like fluoride are added to the drinking water to directly benefit the consumer. Minerals may also be beneficial and many chemicals have no adverse effects on public health. See similar questions...

Yes, studies have shown that alcohol use by youth and young adults increases the risk of both fatal and nonfatal injuries (7,8,9). Research has also shown that youth who use alcohol before age 15 are four times more likely to become alcohol dependent than adults who begin drinking at age 21 (10). Other consequences of youth alcohol use include increased risky sexual behaviors, poor school performance, and increased risk of suicide and homicide (11,12). See similar questions...

In tests that do use ionizing radiation, the dose is usually very small, and is often similar to what you would get from natural background radiation in everyday life. As an example, a dose for a typical X-ray procedure might be 30 - 1,000 mr. Despite extensive study of the effects of radiation, direct evidence does not show that these doses are harmful to humans. See similar questions...

Trans fats can raise the level of low-density lipoprotein (LDL) cholesterol (also called the ??bad?? cholesterol) of our body, while at the same time lower the level of high-density lipoprotein (HDL) cholesterol (also called the ??good?? cholesterol). This increases the risk of coronary heart disease, which is the second killer in Hong Kong . See similar questions...

Water provides an important component in the fulfillment of metabolic functions of the living organisms. The daily intake of water should be 3% of the body weight. That is to say, a person weighing 80 kg requires 2.4 liters water per day. The human body loses water daily in urine, breathing, transpiration, and in defecation. A person of 80 kg will lose 1.2 liters (50%) in urine, 0.4 liters (17%) in breathing, 0.6 liters (25%) in transpiration and 0.2 liters (8%) in defecation. See similar questions...

Radon is a radioactive gas found in some groundwater supplies. Radon is formed by the natural decay of radium and uranium. Scientists believe that long term exposure to radon causes cancer. Most exposure to radon comes from the ground underneath the residence through the air and into the lungs. EPA will set standards for radon in drinking water early in the next century. If you suspect radon in your home, call the local health department. Test kits are available. [Return] See similar questions...

Suspended particulate matter (PM) is an air pollutant derived from the combustion of fossil fuels in the form of dust, soot, or smoke. Diesel engines account for about one quarter of the particulate air pollution from all on-road sources. More than 98 percent of the particles emitted from diesel engines are fine particles, less than 1 micron in diameter, which can bypass respiratory defense mechanisms and penetrate deep into the lungs. See similar questions...

Nitrogen oxides (NOx) are a family of reactive gaseous compounds that contribute to air pollution. NOx emissions are produced during the combustion of fuels at high temperatures. Nitrogen oxides can irritate the lungs, cause bronchitis and pneumonia, and lower resistance to respiratory infections. They are an important precursor to both ozone and acid rain, and may affect both terrestrial and aquatic ecosystems.(5) See similar questions...

Styrene is not harmful in the very small amounts most people might sometimes encounter in air or food. Someone working with resin solutions containing styrene (patching the surface of a fibreglass boat, for example) may find the odour of styrene causes slight nausea if instructions to ensure adequate ventilation are not heeded. This goes away with exposure to fresh air, and there is no lasting effect. with all chemicals it is important to control one's level of exposure to the product. See similar questions...

If the water is discoloured you should not assume that it is safe to drink until you have sought advice from your water company. If the discolouration is due to mains deposits, these are mostly iron and manganese as such are not likely to be harmful to your health. However you may not wish to drink the water, or give it to your family, because it looks or tastes unpleasant. See similar questions...

According to recent reports from the E.P.A. and other watchdog environmental groups, between 30 to 53 million people are drinking unsafe, contaminated water. Contaminants include bacteria, parasites, lead, chemicals and other toxic substances. The E.P.A. has ranked water contamination in the top four public health problems. Among AIDS patients, cryptosporidosis is regarded as a leading cause of the wasting syndrome that frequently leads to death. See similar questions...

Multi-Pure's Drinking Water Systems have been tested and listed under NSF/ANSI Standard No. 42 and Standard No. 53 by NSF International. The replacement filters are also tested and certified by NSF. See similar questions...

According to a 1999 study by the National Academy of Sciences, arsenic in drinking water causes bladder, lung and skin cancer, and may cause kidney and liver cancer. The study also found that arsenic harms the central and peripheral nervous systems, as well as heart and blood vessels, and causes serious skin problems. It also may cause birth defects and reproductive problems. NRDC analyzed data compiled by the U.S. Environmental Protection Agency on arsenic in drinking water in 25 states. See similar questions...

People choose not to drink for many valid reasons – medical, religious and personal. People who drink generally do so for social and personal pleasure, or to "drown their sorrows." A decision to begin drinking should not generally be made for medical reasons. Would-be drinkers need to recognize that there are many risks associated with drinking, even at moderate levels. See similar questions...

If properly installed inside the duct, air health is a safe and practical product. However, direct exposure to UV light is not recommended, as it may cause damage to skin and eyes. UV light does not pass through solid materials such as plastic, glass or metal ductwork. See similar questions...