Adenosine is found all over your body.

腺苷酸存在于你身体的各个角落。

Remember, ATP is kind of like molecular currency.

记住，三磷酸腺苷有点像分子货币。

Firstly, caffeine blocks the receptors in the body for a compound called adenosine.

首先，咖啡因会阻断体内对腺苷化合物的受体。

Caffeine works by interfering with a molecule called adenosine.

咖啡因通过干扰种叫做腺苷酸的分子来产生效果。

In other words, it makes you feel relaxed.

换句话说，腺苷能让你感到放松。

Throughout the day, your brain has been releasing a waste product called adenosine.

整天，你的大脑都在释放废物，就是腺苷。

There are four bases: adenosine, thymine, cytosin, and guanine.

腺苷、胸腺嘧啶、胞嘧啶和鸟嘌呤。

Adenosine can no longer bind, meaning it's calming properties are diminished.

腺苷无法再与受体接，意味着它的镇静作用就会减弱。

Luckily, these guards can be bought off with a little ATP and some calcium.

幸运的是，这些警卫可以用点三磷酸腺苷和些钙收。

Caffeine gets in there and blocks that receptor so you never feel that tiredness.

咖啡因到脑区后 阻碍腺苷与受体结合，所以你不会感到疲惫。

In fact, caffeine works by blocking adenosine's receptor pathways.

事实上，咖啡因是靠阻断接受腺苷的感知器官来实现其作用的。

Caffeine blocks adenosine from binding to receptors, which can give you a boost of energy.

咖啡因阻止了腺苷和受体的结合，让你短暂得到能量。

An organelle whose main job is to create ATP for its host cell.

种细胞器，其主要工作是为宿主细胞产生三磷酸腺苷。

Those molecules can then be processed and used in the making of ATP.

然后这些分子可以被加工并用于制造三磷酸腺苷。

No, no, no, it only stops your heart for six seconds...-Meredith, it's adenosine.

不，不，不，这个只会停住你心跳6秒... -Meredith，是腺苷。

Caffeine is a pro at mimicking a neurotransmitter called adenosine.

咖啡因是种能够像“腺苷”神经递质样在神经细胞间传递信息。

Whenever you're awake, a chemical called adenosine slowly accumulates in your brain.

当你清醒时，种叫腺苷的化激素慢慢在大脑累积。

But because it's not adenosine, the" sleepiness" effect isn't felt.

但是，由于咖啡因不是腺苷，所以再怎么积聚你都不会感觉到有睡意。

But this lazy anaerobic way to get energy only produced enough ATP to take care of basic housekeeping.

但是这种懒惰的厌氧方式只能产生足够的三磷酸腺苷来处基本事务。

The more adenosine latching onto receptors in your brain, the more tired and inattentive you become.

越多腺苷附着在你的大脑受体上，你就越感到疲乏和无法集中注意力。