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Drinking Too Much Water As Harmful As Too Little
Consuming too much water in a short period of time is potentially fatal(CCSS Level: Grade 9, Words: 305)
Jan 9, 2018 Science & Technology
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Drinking water is essential as it allows us to perform daily tasks such as digesting food, keeping cool and much more, but how much water is it safe to drink in a day? Most people are advised to consume at least two litres or eight glasses of water per day, but recent studies have shown that this amount is not accurate as coffee, tea, fruits and vegetables also count. New research is recommending that people take care not to over-drink water.

"There's no scientific method behind those numbers," exercise physiologist Stacy Sims, a Ph.D hydration researcher at Stanford University states. "And the recommendation doesn't take into account gender, environment, altitude, fitness level - factors that could affect fluid intake needs". When you drink too much water in a short period of time you may end up peeing too much and not absorbing any fluid, and this can imbalance your electrolyte levels. This is the body's natural response to the volume of water in your body.

Drinking too much fluid in a short period of time can be dangerous as it may cause hyponatremia which is a form of water intoxication. This is when the sodium and salt in your blood becomes too diluted, and this can lead to confusion, nausea, headaches, bloating and in extreme cases cerebral oedema which leads to brain damage. The symptoms of hyponatremia are often confused with symptoms of dehydration, which is when you do not consume enough water, and as a result more water is taken. Hyponatremia is a very rare but fatal circumstance that generally does not affect young healthy people unless they drink litres of water at once. However, infants are more vulnerable as their bodies are so tiny that they cannot handle lots of water, which is why doctors say infants should only drink milk and formula.

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ab-sor-bing

taking in or soaking up


v.吸收

ac-cu-rate

correct in all details, exact


adj.准确

ad-vised

urged or encouraged


v.建议

cir-cum-stance

the conditions under which something happens


n.情况

da-mage

hurt or cause harm


v.损伤

dan-ger

something likely to cause harm or injury


n.危险

dan-ge-rous

likely to cause harm or injury, not safe


adj.危险

di-ges-ting

breaking down (food) in the digestive system into substances that can be absorbed and used by the body


v.消化

e-lec-tro-lyte

a liquid or gel that contains ions and can be broken down by electrolysis


n.电解质

en-vi-ron-ment

place where something lives


n.环境

es-sen-tial

extremely important


adj.必要

ex-treme

the greatest amount possible, on the edge / highest, very great, dangerous


n,adj.极端

fatal

deadly, making something die


adj.致命

fit-ness

the condition of being fit and healthy


n.健身

health

free from illness or injury


n.健康

health-y

being well, without sickness


adj.健康

hy-po-na-tre-mi-a

water intoxication


n.低钠血症

im-bal-ance

lack of proportion or balance between two or more things


n.失调

in-tox-i-ca-tion

the state of being drunk or drugged, especially by alcohol


n.醉

na-tu-ral

from nature, not manmade


adj.自然/天然

oe-de-ma

a condition in which too much watery fluid collects in the cavities or tissues of the body


n.浮肿

per-form

put on a show


v.演出/表演

rare

not common, not often seen


adj.罕见

re-cent

not long ago


adj.最近    

re-search

looking for knowledge


v.调研

re-search-er

person who searches for knowledge


n.研究员

sci-en-ti-fic

based on the methods and principles of science


adv.科学

symp-toms

signs of illness


n.症状

tox-ic

poisonous  


adj.有毒

vul-ner-a-ble

susceptible to physical or emotional attack or harm


adj.弱势