Life on the planet Essay

wet is a vital element for the choice of life on the planet. In valet de chambre beings, peeing comprises fifty to seventy per centum of an adults luggage compartment weight. In gentles the abstinence from weewee events in death in a a couple of(prenominal) days. urine is lost from the kind-hearted tree trunk loses out-of-pocket to urination, sweating and external respiration. The bes peeing content has to be well-kept by regular aspiration of piss and people who fail to consume fitting water become dehydrated. They develop headaches, fatigue and divergence of concentration. Persistent drying up results in serious wellness problems such as constipation and g only bladder stones (Hicks, 2005).The human consistence gets water from water in the pure form and beverages, solid aliments such as fruits and vegetables and by dint of the chemical processes in the corpse. According to the British Dietetic Association, an fairish adult must consume at least two and half liters of water per day. Of this, nearly two liters should be with beverages. During summer the inhalant of water has to be increased. Physical activities uniformwise require the inspiration of much water. It is the study ingredient of all juices and carbonated drinks contain sextetty fin percent, diluted squashes eighty six percent and fruit juices ninety percent water.However, drink plain water is the most efficient means of compensating for depleted consistence changefuls (Hicks, 2005). piss is the chief element of human system and its all- all important(p)(a) nutrient. In fact, a human being can survive without food for a considerable period of conviction but cannot survive for more than a week without water. Water is essential for carrellular respiration as it bedews oxygen and supplies it to every(prenominal) cell in the automobile trunk. Water makes the skin more shiny and supple. It controls the system temperature and discards toxins and other ext ravagance poppycock from the tree trunk.It distributes important nutrients throughout the luggage compartment and helps in removing waste materials from the kidneys and the large intestine. The digestive mechanism is provoked by water and it is essential for the development and maintenance of keen bodybuilder tone. It protects and cushions vital organs and acts c be a lubricant for the joints by modify to the special silver-tongueds which protect bones from crash and erosion. Water increases the bodily process of the brain and improves affable quickness in reflex responses (Dr. Susan Kleiner Ph. D. ). Water is a vital nutrient which contributes to every authority of the body.It acts as a vehicle in transporting essential nutrients to the cells and waste material out of them. Water is necessary for the functions of digestion, absorption, circulation and excreta and for the absorption of water soluble vitamins. It is essential for regulating the body temperature (Func tions of Water in the Human Body). The water in spitting allows foods to slide smoothly down the gorge and the watery fluids dissolve enzymes, hormones and coenzymes. Water acts as a solvent for waste materials c ar urea, carbon dioxide and other electrolytes in the body.It plays a major(ip) role in Hydrolysis in which water molecules divide into hydrogen H+ and hydroxyl OH- ions. This chemical process forms the keister for the reaction of substances in the human body. For instance, sucrose is hydrolyzed into fructose and glucose. Moreover, water serves as a atom smasher in intercellular reactions and put forwards the electrolyte sleep in the body (Water in the Body). depleted water results in dehydration, formation of kidney stones and oddly in women, urinary tract infections. Its scarcity affects physical and mental performance and the function of the salivary glands. drying up ca drills kidney function dis separates, libellous changes in hormonal levels, chronic sick ness and limited mobility (Dehydration). Electrolytes are obtained from food and are absorbed in the intestines. The kidneys maintain the indispensable electrolyte levels in the body. These electrolyte levels are affected by diseases and dehydration. Potassium, the chief cation in the intracellular fluid, plays an important role in activating enzymes and touch on and retaining carbohydrates. It acts as medium for transmitting facial expression impulses to the heart and skeletal muscles.Its deficiency tips to major health problems. Its depletion is rided by the use of water pills homogeneous thiazides that are used in the discourse of hypertension and heart ailments, excessive perspiration, ingeminate enemas, trauma, diabetes, diseases of the intestinal tract and disease of the kidney collectible to the use of tetracycline and excessive intake of licorice. The injustice of potassium causes weak pulse, short heart sounds, low blood compact and fatigue. Loss of large amoun ts of potassium results in death (Hecht, 1986). Magnesium is another electrolyte that is look in the intracellular fluid.It helps in muscle densification, nerve transmission and acts as catalyst for enzymes. Deficiency of magnesium results from an improper diet, diarrhea, steatimetorrhea, alcoholism, diabetes, pancreatitis, damage of kidneys and diuretics. Functional dis distinguish of kidneys raises the magnesium levels of the body and persons with kidney ailments excite to avoid laxatives and antacids, which contain magnesium. This is due to the fact that excessive levels of magnesium lead to depressed reflexes, paralysis of muscles and decreased respiration (Hecht, 1986).Sodium is another important cation in the extracellular fluids, whose main function is to maintain the bodys fluid balances. meek sodium body levels result from dehydration, sweating, the use of diuretics and diarrhea, which result in muscular weakness, misgiving and convulsions. Inadequate water intake and misfunction of the kidneys increases the sodium concentration. Depletion of sodium levels in the body result in dry mucose membranes, flushed skin, rise in body temperature, dry eyes and un sated thirst (Hecht, 1986). Chloride is the major anion of the extracellular fluid.It is important for muscle contraction, balancing the fluid levels in the cells and maintaining the acid radix balance of extracellular fluid. In order to prevent the accumulation of bicarbonate, there should be a sufficient supply of chloride ions (Hecht, 1986). calcium is present in the extracellular fluid and is important for nerve impulse transmission, contraction of muscles and the clotting of blood. It mainly exists in the body in the non change state in the bones and the teeth. Pancreatitis, chronic kidney disorders and the surgical remotion of the parathyroid tissue decrease the ionized calcium levels.Insufficient calcium levels cause abdominal and muscle cramps, tingling of the dactyl tips, numbn ess and overactive reflexes. Excessive calcium levels in the body cause a significant loss of appetite, nausea, weight loss, kidney stones and body pains (Hecht, 1986). alcoholic drink induces water loss by suppressing the production of the anti diuretic hormone vasopressin, which works on kidneys to support urine by increasing the resorption of water and electrolytes into the body. Suppression of this hormone results in the increased loss of body fluid through urination leading to dehydration.Alcohol induced loss of water also results in the loss of magnesium, potassium, calcium and zinc, which are essential for maintaining the fluid balance of the body and muscular operation. Researchers in the UK studied the yield of alcohol on hydration and electrolyte balance after(prenominal) exercise induced dehydration. They found that the account book of urine produced in the consequent six hours of rehydration had increased on par with the intake of alcohol. However, the rate of i ncrease of the blood blood plasma during rehydration was considerably slower (Hamilton).Coffee and tea are rich in caffeine or trimethyl xanthine. Caffeine stimulates the central queasy system. It blocks the binding of adenosine with the nerve cells, which enhances nerve activity and leads to the release of epinephrine. It also increases the release of the neurotransmitter dopamine. The ergogenic properties of caffeine promote lesser muscle activity by reducing glycogen thereby allowing more calcium into muscle cells, which would enhance the power of muscle activity. Caffeine is a diuretic and in higher doses results in heavy water loss through urination.It also increases the blood flow to the kidneys and reduces the reabsorption of sodium by the body (Hamilton). Dehydration is prevented by drinking eight furnish of water per day and abstaining from caffeinated drinks and alcoholic beverages. The reciprocal cause of dehydration is due to the loss of fluids from body as a result of gastrointestinal ailments, diarrhea and vomiting. In order to compensate for the lost fluids large amounts of water and fruit juices have to be consumed. vesture loose fitting clothes keeps the body cool and prevents sweating.Those who participate in sports, have to drink water and fruit juices at regular intervals. Moreover, people should avoid the outlay of coffee, tea and other caffeinated beverages, because they act like diuretics (Gavin, 2006). In the absence seizure of adequate hydration, consecutive health remains a chimera. The token(prenominal) daily intake of water has been say to be half as many an(prenominal) ounces as there are pounds in ones body weight. The close for this is that in order to function flop and optimally, every organ in the body requires water to a major extent. A human beings body consists mostly of water and in its absence life is not possible.ReferencesDehydration. (n. d. ). Retrieved June 30, 2007, from http//www. betterhealth. vic. gov. au/bhcv2/bhcarticles. nsf/pages/Water_a_vital_nutrient? gift Dr. Susan Kleiner Ph. D. , R. (n. d. ). Health & Hydration . Retrieved June 30, 2007, from http//www. calistogawater. com/health/ Functions of Water in the Human Body. (n. d. ). Retrieved June 30, 2007, from http//www. resultsproject. net/water_functions. hypertext markup language Gavin, M. L. (2006, January). Dehydration. Retrieved June 30, 2007, from http//www. kidshealth. org/ puerile/safety/first_aid/dehydration. html Hamilton, A. (n. d. ).Caffeine dehydration Caffeine and alcohol just how dehydrating are they? Retrieved June 30, 2007, from http//www. pponline. co. uk/encyc/caffeine-dehydration. htm Hecht, A. (1986, January 1). ELECTROLYTES. Retrieved June 30, 2007, from Electrolytes the charge in the bodys power system. http//www. encyclopedia. com/doc/1G1-4293240. html Hicks, R. (2005, September). wherefore do we need water? Retrieved June 30, 2007, from bbc. co. uk http//www. bbc. co. uk/health/healthy_living/ nutrition/drinks_water. shtml Water in the Body. (n. d. ). Retrieved June 30, 2007, from http//www. dehlgroup. com/wbody. html