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  • - HELLO, AND WELCOME TO CHAPTER 8 MATERIAL

  • ON MINERALS AND WATER.

  • THIS SECTION, I'LL BE GOING OVER WATER AND

  • GIVING A BRIEF OVERVIEW OF THE MINERALS.

  • FIRST, I'D LIKE TO LOOK AT WATER OR FLUIDS THAT ARE

  • INPUT INTO THE BODY AND WHERE WE OBTAIN OUR WATER.

  • NOW YOU WOULD THINK WE GET MOST OF OUR WATER FROM LIQUIDS,

  • AND AT TIMES, WE CAN GET MOST OF OUR WATER FROM LIQUIDS.

  • BUT LOOK AT THE COMPOSITION OF WATER WE GET FROM FOODS,

  • AGAIN THIS IS COMPLETELY DEPENDENT

  • ON THE TYPE OF FOOD THAT YOU EAT.

  • FOR EXAMPLE, IF YOU'RE EATING A LOT OF PACKAGED,

  • PROCESSED, REFINED GRAINS,

  • REALLY DRY FOODS, BREADS, BAGELS, CEREALS,

  • THEN YOU'RE PROBABLY NOT OBTAINING A LOT OF WATER.

  • IF YOU'RE EATING MORE FRESH FRUITS AND VEGETABLES,

  • THEN YOU'RE PROBABLY OBTAINING MORE WATER WITH YOUR FOOD.

  • AND THEN A VERY SMALL COMPONENT IS WATER CREATED BY METABOLISM.

  • ESSENTIALLY THAT JUST MEANS THAT EVERY

  • CHEMICAL REACTION THAT HAPPENS IN THE BODY,

  • MOST OF THEM END UP PRODUCING WATER.

  • SO AS A RESULT OF THOSE REACTIONS,

  • THERE IS WATER GENERATED.

  • NOW WHAT ABOUT WATER GOING OUT OF THE BODY?

  • AND THIS CAN BE DURING, YOU KNOW,

  • PHYSICAL ACTIVITY SUCH AS SOCCER,

  • OR IF YOU'RE JUST OUT SITTING ON A HOT DAY,

  • MAYBE YOU'RE SWEATING AND LOSING WATER THROUGH YOUR SKIN,

  • BUT ALSO JUST IN GENERAL IF YOU'RE

  • SITTING AT YOUR COMPUTER RIGHT NOW.

  • WHERE DO WE LOSE OUR WATER?

  • WELL, I THINK ONE OBVIOUS AREA IS THROUGH THE KIDNEYS,

  • AND THIS GOES INTO THE URINE,

  • AND THIS IS GOING TO BE EXCRETED FROM THE BODY.

  • THE SKIN, THROUGH SWEATING.

  • THE LUNGS, AND WHAT I'D LIKE YOU TO DO IS

  • PUT YOUR HAND OVER YOUR MOUTH AND THEN BREATHE.

  • YOU'LL ACTUALLY FEEL A LITTLE BIT OF MOISTURE ON YOUR HAND.

  • SO EVERY TIME YOU'RE BREATHING OUT,

  • YOU'RE LOSING JUST A LITTLE BIT OF WATER,

  • BECAUSE WATER IS ALSO EXCRETED THROUGH THE LUNGS,

  • AND THEN OF COURSE IN FECES.

  • NOW WATER HAS MANY FUNCTIONS IN THE BODY,

  • AND SOME OF THESE FUNCTIONS INCLUDE REGULATING TEMPERATURE,

  • MOISTENING TISSUES SUCH AS YOU MUCOSAL MEMBRANES.

  • YOU THINK OF YOUR, YOU KNOW, YOUR LIPS,

  • INSIDE YOUR MOUTH, THAT HELPS WITH THE KIDNEYS

  • AND THE LIVER TO FLUSH OUT ANY WASTE PRODUCTS.

  • IT HELPS PROTECT THE ORGANS.

  • THEY USUALLY SIT IN AN AREA

  • THAT'S SURROUNDED BY WATER OR FLUID,

  • OR THINK OF THE JOINTS IN YOUR BODY,

  • LUBRICATING THE JOINTS.

  • SO YOU HAVE YOUR BONE CARTILAGE,

  • THERE'S USUALLY SOME JOINT FLUID,

  • AND THEN THAT ALLOWS TO PROTECT THOSE JOINTS.

  • IT HELPS DISSOLVE MINERALS TRANSPORTED IN THE BLOODSTREAM.

  • I MEAN, WHAT IS YOUR BLOOD?

  • YOUR BLOOD IS ACTUALLY MOSTLY WATER-BASED,

  • AND THEN CARRIES NUTRIENTS AND OXYGEN TO ALL THE CELLS,

  • ALL OVER THE BODY.

  • NOW HOW MUCH WATER DO YOU NEED?

  • WELL, MEN NEED ABOUT 13 CUPS PER DAY AND

  • WOMEN ABOUT NINE CUPS OF WATER A DAY.

  • AND YOU HEAR ABOUT THAT EIGHT BY EIGHT RECOMMENDATION,

  • EIGHT CUPS OF EIGHT OUNCES OF WATER,

  • ACTUALLY THAT'S A FANTASTIC WAY TO

  • REMEMBER HOW MUCH WATER TO DRINK.

  • USUALLY YOU WANT TO DRINK A LITTLE BIT MORE,

  • BUT IT ALSO DEPENDS ON HOW MUCH YOU'RE OBTAINING FROM FOOD.

  • IF YOU HAVE FOODS THAT ARE GENERALLY MORE WATER DENSE,

  • YOU PROBABLY DON'T NEED TO DRINK AS

  • MUCH WATER THROUGHOUT THE DAY.

  • AND IT DOESN'T HAVE TO BE WATER, IT CAN BE ANY SORT OF FLUID,

  • AS LONG AS IT'S NOT A SUGAR SWEETENED DRINK

  • OR BEVERAGE OR ARTIFICIALLY SWEETENED BEVERAGE.

  • REMEMBER, WE WANT TO STAY AWAY FROM SUGAR SWEETENED,

  • ARTIFICIALLY SWEETENED BEVERAGES,

  • THAT MAYBE YOU HAVE COFFEE IN THE MORNING

  • OR YOU HAVE TEA OR YOU HAVE MILK.

  • ALL OF THOSE ARE BEVERAGES THAT ARE

  • GOING TO COUNT AS FLUID INTAKE.

  • IT DOESN'T HAVE TO ACTUALLY BE WATER.

  • NOW I WANT TO JUST MENTION A LITTLE BIT ABOUT BOTTLED WATER,

  • BECAUSE THIS HAS JUST EXPLODED.

  • AND ACTUALLY IS THE MID-2000s WHEN IT WAS REALLY POPULAR,

  • SALES HAVE ACTUALLY GONE DOWN A LITTLE BIT,

  • AND THE LATEST STATISTICS I HAVE ARE FROM 2011,

  • $11 BILLION IN SALES FOR BOTTLED WATER.

  • NOW THAT'S A LOT OF MONEY,

  • BUT IT'S NOT ACTUALLY SAFER THAN TAP WATER.

  • NOW THERE MAY BE SOME REGIONS WHERE

  • THE TAP WATER IS NOT IDEAL TO DRINK.

  • I DID MY UNDERGRADUATE DEGREE AT UC DAVIS,

  • AND THE WATER THERE IS ABSOLUTELY HORRIBLE.

  • IT COMES OUT BROWN.

  • IT WAS HORRIBLE TO DRINK.

  • YOU KIND OF HAD TO DRINK YOUR BOTTLED WATER.

  • BUT I LIVE NOW IN TAHOE AND THE TAHOE

  • TAP WATER IS ABSOLUTELY FANTASTIC,

  • SO IT'S GOING TO DEPEND BY REGION.

  • FOR THE MOST PART, IT'S GOING TO BE JUST AS GOOD,

  • JUST AS SAFE AS TAP WATER.

  • AND ALSO IT'S NOT HEALTHIER THAN TAP WATER,

  • SO BOTTLED WATER IS NOT HEALTHIER.

  • NOW THE NATIONAL RESOURCES DEFENSE COUNCIL DID A STUDY,

  • AND THEY LOOKED A THOUSAND BOTTLES OF WATER,

  • AND THERE WERE A HUNDRED DIFFERENT,

  • ALTHOUGH DIFFERENT BRANDS,

  • AND THEY LOOKED FOR DIFFERENT CONTAMINANTS,

  • FROM BACTERIA TO TOXINS OR CHEMICALS,

  • THAT WERE ABOVE THE ACCEPTABLE RANGE,

  • AND THEY FOUND THAT A THIRD OF BOTTLED WATER IS CONTAMINATED.

  • NOW IF YOU ARE SOMEONE WHO REGULARLY DRINKS BOTTLED WATER,

  • MY RECOMMENDATION IS THAT YOU DO YOUR RESEARCH ON YOUR WATER.

  • MAKE SURE THAT IT HAS BEEN TESTED BY

  • AN INDEPENDENT LABORATORY SO THAT YOU KNOW IT'S SAFE.

  • I'M JUST GOING TO BRIEFLY GO OVER THESE,

  • AND THEN WE'LL MOVE ON TO THE NEXT VIDEO.

  • THE MINERALS ARE BASICALLY ELEMENTS.

  • THEY DON'T BREAKDOWN TO ANYTHING SMALLER.

  • REMEMBER, VITAMINS ARE ORGANIC.

  • IT MEANS THAT THEY'RE CARBON-CONTAINING.

  • THEY HAVE CARBON.

  • THEY HAVE HYDROGEN.

  • THEY HAVE OXYGEN.

  • THEY'RE LARGE MOLECULES.

  • WELL, THESE ARE JUST VERY BASIC ELEMENTS.

  • AND THERE ARE MAJOR MINERALS,

  • WHICH MEANS OUR BODIES NEED MORE OF THEM.

  • AND THEN THERE ARE TRACE MINERALS,

  • WHICH MEANS THEY'RE JUST AS IMPORTANT,

  • BUT WE JUST NEED LESS OF THEM.

  • CALCIUM, CHLORIDE, MAGNESIUM,

  • PHOSPHORUS, POTASSIUM, SODIUM,

  • AND SULFATE ARE GOING TO BE OUR MAJOR MINERALS.

  • WE'RE GOING TO DISCUSS ALL OF THESE EXCEPT FOR SULFATE.

  • AND THEN THE TRACE MINERALS, IODINE,

  • IRON, ZINC, SELENIUM, FLUORIDE,

  • CHROMIUM, COPPER, MANGANESE,

  • AND WE'RE GOING TO DISCUSS MOST OF THESE.

  • THE CHROMIUM, COPPER, MANGANESE,

  • YOUR BOOK DOES TOUCH ON THESE,

  • BUT I'M NOT GOING TO REALLY TALK ABOUT THESE IN THE VIDEO.

  • SO THAT'S IT FOR WATER AND OUR OVERVIEW OF MINERALS.

  •  

- HELLO, AND WELCOME TO CHAPTER 8 MATERIAL

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B1 中級 美國腔

10.1 礦物質。水和礦物概述 (10.1 Minerals: Water & Mineral Overview)

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    wenwen 發佈於 2021 年 01 月 14 日
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