Stereotyping westerners for doing that is the wrong thing to do, as not just everyone who lives in the west does that. Pretty much everyone from every part of the world does it - and there are some who don't, as some westerners do not do this. It is just easier to leave the water on then turning it on and off and on and off every time the person has to put their toothbrush down.
You don't you can't use gallons to brush your teeth that's stupid.
Conserving the water when you turn off the faucet when you brush your teeth.
Turn off the water while brushing your teeth until you are ready to rinse.
Up to six liters of water per minute can be wasted during teeth brushing. It is recommended to turn water off while someone is brushing their teeth in order to save water.
You would be being frugal (careful in spending or using something) in using the water.
By saving water, air, gas, and resources. Take small steps like turning off the tap while brushing your teeth.
30000 gallons
About a half cup
Luke warm
Depends if you are running the water while brushing your teeth. Otherwise around 1-2.5 liters of water
I was not sleeping, I was just trying to conserve my energy. The water that you conserve today can be consumed tomorrow.
By turning off lights when your not using them, turn off water while brushing your teeth. Also you can air dry your clothes instead of putting them in the dryer.