这会杀死你的脑细胞吗?Will This Kill Your Brain Cells

未能成功加载,请稍后再试
0/0

You have approximately a 171 billion total brain cells. 86 billion of these are neurons that process information, sense varied stimuli and make you. . . well, you

But are there things in everydaylife that reduce this count?

What will kill your brain cells?

We used to think that the brain couldn't produce new neurons.

Although neurons are stabled cell type, meaning they don't multiple themselves.

We now know that new neurons are produced from neural stem cells throughout our lifetime​.

But this happens only in certain areas of our brain.

Mainly in two small regions in the forebrain.

So, while we can make new neurons, brain cell death in large amounts may be dangerous and irreversible.

For example, within 5 minutes of a good blow to the head, Axons are compressed and calcium rushes into your neurons, which can signal a number of different pathways and enzymes to begin cell death.

下载全新《每日英语听力》客户端,查看完整内容