Saturday, October 24, 2009
"Fluoride prevents decay, says dental body" - The Straits Time, Saturday 24 October 2009
According to the article, the addition of fluoride in water is to reduce the number of dental caries or decay, which is the most prevalent childhood disease and the most common non-communicable disease. There are misconceptions of fluorine, that it is harmful to health, however, the side effects of consuming fluorine is either nothing or mild, that is if the fluorine concentration level is below the optimal amount.
Though there are other methods of reducing number of dental caries or decay, for example changing dietary habits, having preventive fillings and applying fluoride, water fluoridation is a more effective, safe and cost-effective method.
Out of curiosity, i went to dig up some information about water fluoridation on the internet:
A 1994 World Health Organization expert committee suggested a level of fluoride from 0.5 to 1.0 mg/L (milligrams per liter), depending on climate. For warmer climates, the optimal level of fluorine is much lower than that of cooler climates, as people drink more water.
Fluorine can also be found in natural waters such as lakes and rivers, but mostly under the concentration of 0.5mg/L.
If overdosed with fluorine, one may suffer from dental fluorisis.
Critical period of exposure is between age 1-4. Dental fluorisis cracking or splitting of teeth, or just white streaks or spots. (mild!)
"Independent research studies have shown that fluoride has been directly linked to: kidney and bladder disorders; bone malformation; arthritis; skin disease; calcified deposits in the aorta; interference with thyroid function, causing hypothyroidism; and weakening of the immune system; damage to connective-tissue collagen, to ligaments, tendons, bones, arteries and DNA."
-SGforum (linked, but might not be the root cause...)
If the government approve of water fluoridation, there is no need for anyone to be worried about side effects of consuming fluorine!
Labels: water fluoridation
12:27 PM
Friday, October 23, 2009
tit for tat:
with an equivalent given in retaliation, as a blow for a blow, repartee, etc.:
He answered their insults tit for tat. If you keep taking risks like that, you'll get tit for tat
tic tac!
one-up:
to get the better of; succeed in being a point, move, step, etc., ahead of (someone):
They one-upped the competition. That sly dog one-upped me again...
10:33 AM
Wednesday, October 21, 2009
It hurts to hurt someone close to you.
Sorry, but apologies are not enough to completely to eradicate those memories.
To hide a tree in a forest! >no link<
People change as time passes, as they are forcibly placed in an uncomfortable surrounding and people whom they dun blend in well with. It's hard to accept the change, bt change is inevitable.
Jus accept it.
Boo. The horrible weather is killing me and the patience of everyone. Boo the weather boo! Boo myself for literally walking into the drain that gave me cuts and bruises and an unforgettable memory at OCS. BOOOOO.
Yay to HX for the plaster and LTT who just makes me happy when i see her.
YAYY!:D
Labels: blahblah, OCS
9:46 PM
Thursday, June 18, 2009
okay = = how do i post a video= = gahhhh blogger sucks :/
Anyway, here's the link
http://www.youtube.com/watch?v=_ZucSLWCEcAOne Love by SUPER JUNIOR~!
amazing song, sang by my one and only eunhyuk! he rapped this song!!! 3 cheers for hyunkjae!!! *clap clap clap clap clap!* XD
thanks to eug, i think i'm addicted to again again and prisoner of love!!! the chorus keep humming in my head!!D: gd thing though. LOL!
wasting another afternoon USING COMPUTER!ZZZ!
hais, depressing siah.. dun think i can get at least a B for all subjects.. stress arhh..!
looking forward to physics tuition tomorrow!! hope cher will go through gravitation or some other cheeeeem topic! :/
I HOPE!
jya sayonara! :D
nobody understands...Labels: one love, physics tuition, super junior
1:20 PM
Wednesday, June 17, 2009
I was reading thermal equilibrium and stumbled into this question:
During a bout with flu, an 80kg man ran a fever of 2.0 c; that is his body temperature was 39 c instead of the normal 37 c.
Assuming that a human body is mostly made up of water, calculate the amount of heat required to raise his temperature by that amount.
Q=mcT
Q=(90)(4200)(2.0)
Q=6.7 x 10^5
How about this?
If a 35kg child has a temperature of 40 c, how much heat is required to raise his temperature from initial 37 c?
Q=mcT
Q=(35)(4200)(40-37)
Q=4.4 x 10^5
does these values mean that the chances of a child getting fever is alot higher than that of an adult? including the fact that children have a weaker immune system, does that mean that a child is even more vulnerable to viruses? o.o someone enlighten me please!
11:27 AM
Tuesday, June 16, 2009
When i drink this cup of coffee..
From the outside, it just looks like i brought the coffee cup up to my mouth. How about the amount of coffee in the cup goes down, how the coffee starts going through my body, and how my stomach starts moving to digest it?
It's too obvious for us to take notice these things, for we don't normally notice the obvious stuff, or even take them for granted.
In this familiar scent, i start to reminiscence..
Labels: coffee -voice
11:06 AM
Saturday, June 13, 2009
"You throw away the trash in your pocket. You think about the fact that your pocket is cleaner because you threw out the trash, but do you think about how the trash you threw away has made the city dirtier? You don't, do you? That's why this Rubik cube.. If you think about getting one side to be all one color and go to move it, then turn it one way, the other sides will change too, right? What effects does a single action have on it's surroundings? Well, what that boils down to is the person able to become aware of it? I think there is great potential for change there. It's just a tiny toy, but it's strangely philosophical."
-Voice, Prof Sagawa
makes sense eh? I recommend everyone to watch voice on
http://www.mysoju.com/
http://www.dramacrazy.net/
under JAPANESE drama! here's a short introduction for you!
The story revolves around a group of five medical students enrolled in a seminar on forensic pathology. Kaji Daiki noted for his keen perception and strong intuition, along with the other students work on uncovering the mysteries of the corpses they examine.
Together, the group of five medical students take on the task of conveying the "voices of the dead".
a vivid imagination and a tinge of common sense makes you a good forensic student!
btw, its a medical/mystery drama, not horror!;D
watch it!
Labels: voice rubikcube
10:38 PM
Jiahui
lao xiao
23.09/08.92
electonist
Rulang 3K4K5U6U'04
RIVER VALLEY 1C2C3G4G5M'09
Super Junior fan!
eunhyuk!♥
zhu family
super junior
sorry sorry
beloved friends
apples
my keyboard
lion
cat
shorts
addidas
handphone games
YOU SHOULD KNOW~
LIARS.
dejavus
new and <$10000 keyboard
outings
sakura with the pigs!
addidas stuff?
GREEN SHIRT
apples
clean room
brighter lights in my room!
wuyi
charmaine
xinyu
eugenia
links
1
2
3
4
5
6
I was reading thermal equilibrium and stumbled into this question: