Health Scan: November 2019 - www.healthscan.biz
The Question is simple. But the answer is difficult.  The amount of water requirement depends on various factors which include:  age, gender, life style, physical activities, health and medicine, geographical conditions and so on.  Water in our body  Our body needs water for a   variety of reasons. Water transports nutrients within our body, moves out wastages, useful in regulating body temperature, needs for muscular toning, supports in digestive process. It involves in metabolic reactions, keeps active cell life as well.   Our blood is composed of more than 90% of water. Our muscles contain 75% of water while bones contain about 225 water. As a whole our total body is 60% of water by weight.  For example70-kg man   will have about   40  litres of total water. Also, a notable point is that  more fat in the body implies  less water the body contains in general.   Water utilized in body processes  To maintain  proper body functions there should be right amount of water in our body. Water should not be too less or excessive. Less amount of water for longer duration leads to acute dehydration and can affect organ functioning for short duration or for long-term.    During the body processes water is ejected out of our body. Approximate quantities of water ejected are as follows:  •	Kidneys :1.5 to 2.0 litres •	skin in the form of sweat : 0.5 litres •	Intestines : 0.25 litres •	Lungs : 0.35 to 0.4 litres •	Miscellaneous : 0.2 litres   Generally, People feel thirsty when they loose around 3 to 4%  of water than normal.    How much water is needed?  The need is determined by various factors. A few typical examples are given below:  Case 1: Imagine a geographical city or town nearer to a coastal zone where  Relative humidity in air is 90%.  The average city temperature is about 20 deg C A. Assume a male  person of 40 yrs who  has sedentary life style. This means he doesn't do any hectic physical activity or rigours exercises.  Most of the day he carries his work by just sitting, as in the case of a IT computer professional.  Inference: His suggested water intake is to be around 1.5 L. For the same person, if the environmental temperature goes to 40 deg C then the intake of water should be raised  by another 1  litre or a little more. Case 2: In the above case, if the person weighs 90 kg, his water consumption has to be 2L. at 20 deg and  a little above 2.5 L at 40 deg. Case 3: In  a town where the RH is about 40% and the average day temperature is around 40 deg C, then the same person of 60 kg   may need to consume between 2.5 L  and 3.0 L per day. and just above 3.0L if the weight is 90 Kg.  Case 4: Consider a woman of 40 years age with about 60 kg weight. If her general health is good, in the areas of Relative humidity around 90%  then intake of  water about 1,5 litres is recommended for moderate physical activity and 2.0 litres in the areas of Rh 40%.  It is always ideal to drink water between 1.5 litres to 3 litres depending upon various conditions.   Beyond this  quantity,    intake is to be advised by Physician or Dietician as per additional conditions like intake of certain medicines or special conditions involved.    How to drink  water?  It is not recommended to drink a lot of  quantity at a time.  The intake span is to be properly spaced.    The following points may help you to keep well hydrated:  •	Start the day with 2 glasses of water immediately after brushing.  •	It is good to drink water in small quantities with equal intervals of time •	It is not at all good to drink huge quantities of water at a single shot and then give large time gap. •	It is a good practice to take 2 or 3 glasses of water immediately after breakfast, lunch and dinner. •	In a day one should consume about 10 glasses of water which works out to be around 2 to 2.2 litres.  In specific cases  such as  sports activities or drug intake it may be more. •	Cases like kidney stones  may require heavy intake of water as per the advice of Physician or health care provider. •	In particular, people who have the habit of taking alcohol or soft cola drinks or more coffee may require to have a  more than normal intake of water.   Drinking enough should be an easily achievable health goal. "Under normal conditions, most people can drink enough fluids to meet their water needs," states the Centre for Disease Control, USA.  Therefore, it is always better to follow scientific advise and enjoy healthy water! The  American College of Physicians issued new guidelines for people who had previously developed kidney stones, stating that increasing fluid intake to enable 2 liters of urination a day could decrease the risk of stone recurrence by at least half with no side effects.
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