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该不该喝运动饮料? – 译学馆
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该不该喝运动饮料?

What Do Electrolytes Actually Do?

啊 著名的电解质
Ah,the famous electrolyte.
运动饮料商喜欢谈论它们 但它们是什么?为什么我们需要它们?
Sports drink commercials love talking about them, but what are theywhy do we need them?
如果我们摄入不足会怎样?
and what happens if we don’t have enough?
电解质是盐类
Electrolytes are salts.
实际上 他们是通过食物摄入体内的盐类
Actually, they’re salts that we take into our body, usually by way of food.
电解质溶解为正负离子 并在水中导电
Electrolytes dissolve into positive and negative charges and conduct electricity in water.
最常见的一种是氯化钠 即最常见的食盐
The most common one is sodium chloride, orplain old table salt,
它们是你身体中最常见的无机盐
these are the common electrolytes in your body.
被认为是一种重要离子 因为它们控制着
Also known as ions, their charges are crucial because they control the flow of water in
我们体内细胞液的流动和神经信号的传导
our cells and nerve impulses in our bodies.
细胞膜上的离子通道调节正负离子
Ion channels in cell membranes regulate the flow of the positive and negative charges through cells
进出细胞
through cells.
水分子跟随带电离子 总是流向电解质多的一侧
Water follows these charges, and always goes to the side that has a greater number of electrolytes.
多谢细胞渗透性
Thanks, osmosis!
没有水盐平衡行为 我们的细胞会皱缩
Without the balancing act between electrolytes and water, our cells could shrivel up and
会死亡甚至涨破
die, or burst from being too full.
在神经细胞中 通过离子通道的神经递质
In nerve cells, a positive ion moving through an ion channel sparks off an electrical impulse,
会激发电信号来指挥身体正常运作
signaling our bodies to function properly.
没错
That’s right.
电解质在人体内保持恒定来保证心脏跳动
Electrolytes control the constant impulses in our bodies to keep our hearts beating,
呼吸功能和大脑学习的正常工作
our lungs breathing, and our brains learning.
所以 是的 电解质相当的重要
So yeah — electrolytes are pretty important.
他们同样会把你的汗液变成盐
They also make your sweat salty.
当我们锻炼的时候 体温上升 细胞中的离子
When we’re working out and our bodies start to heat up, ion channels in our cells dump
通道会把电解质 即盐 通过汗腺排出
electrolytes, aka salt, into the sweat gland.
由于渗透性 水分也紧随其后
Thanks to osmosis, water follows closely behind.
这导致腺体内压力增大 所以盐类混合物
This increases the pressure in the gland, so that salty mix gets pushed out onto the
被排出体外
skin.
水分蒸发时吸收身体的热量 使你凉爽
When that water evaporates, it pulls heat off your body and cools you down, leaving
留下盐分的残留物
a salty residue behind.
但是 如果失去太多的电解质 神经细胞将工作紊乱
But if you lose too many electrolytes, your nerves won’t work properly, which can lead
并造成心脏 血压和呼吸的问题
to problems with your heart, blood pressure, breathing and you’ll definitely not be performing
并且你将表现较差
your best.
此时你是否赶紧喝点亮橙色的运动饮料来
So you’d better reach for the bright orange sports drink and get those electrolytes back
补充点解质呢
ASAP, right?!
然而 可能也不是
Well, maybe not.
最近有一个关于运动饮料必需性的争论
There’s been controversy recently on whether sports drinks are even necessary.
通常 人们能从食物中补充足够的电解质
People generally get enough electrolytes to replenish the ones lost in a workout from
来平衡消耗的
their diet.
并且 一些运动饮料中含有糖
Also, some sports drinks have sugar in them.
所以如果你做了一个半小时的有氧运动
So if you’re doing a half an hour of cardio, a single bottle of the stuff will give you
一瓶饮料就会把刚刚消耗掉的卡路里补充回来
back all the calories you just worked off.
可以100%补充你燃烧的卡路里
COULD BE 100% OF THE CALORIES YOU‘RE BURNING
如果你锻炼不到1小时 身体会自我调节
if you working out for an hour or so,water will keep it higest
所以并不需要额外的补充电解质和糖类
and you probably don’t need those extra electrolytes or sugars.
或许在跑马拉松
but maybe running a marathon, feel free to
要随时给身体补充运动饮料
reach for that sports drink now and again, Your body will thank you.
想了解更多吗?
Thirsty for more?
告诉我你的化学问题 我会在之后的视频中解答
Let us know your burning chemistry questions and we might tackle them in a future video.
及时点赞 谢谢观赏
Thumbs up on the way out and thanks for watching!

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视频概述

介绍我们在什么时候才需要补充运动型饮料,什么时候不需要,而不是越多越好

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视频来源

https://www.youtube.com/watch?v=xhLHtuZ3VOI

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