It alerts your pineal gland to start producing melatonin.

它提醒你的腺体分泌褪黑素。

But with nightfall comes the release of sleepy melatonin hormones from the pineal gland.

是在晚上，就会从体分泌褪黑激素。

A rare supratentorial pediatric tumor is a pinealoma, which forms in the region of the pineal gland.

还有一种罕见的儿童脑幕上肿瘤：体瘤，在体中形成。

Pinealomas primarily emerge from the endocrine cells of the pineal gland, and they can be grade I through IV.

体瘤初发于体的内分泌细胞，可分为I到IV级。

As the sun rises, your pineal gland stops releasing melatonin.

随着太阳升起，你的体停止分泌褪黑激素。

Melatonin is a hormone secreted by the pineal gland in your brain.

褪黑素是由你脑体分泌的一种激素。

When the sun goes down, it is released by the pineal gland in the brain.

当太阳下山时，脑中的体就会释放这种物质。

Melatonin is this hormone that's released from the pineal gland.

褪黑激素是体释放的一种激素。

It's different from the melatonin that we make from our pineal gland.

这与我们从体产生的褪黑素不同。

Maybe it was 85% subcellular, 5 in the guts, and then 10 from the pineal gland.

也许是85%的亚细胞层面，5%在肠道，然后10%来自体。

Again, not ideal, but the pineal gland and the part of the hypothalamus is regulated by light.

再次强调，这并不想，体和下丘脑的一部分受光线调节。

All they way up here at the top of our head, like with the pineal gland, the pituitary gland.

一直往上到我们头的顶部，比如体和垂体。

Now the pineal gland's the most mysterious, misunderstood, smallest organ in the body, yet the most sophisticated.

现在体是体内最神秘、最被误解、最小的器官，然而也是最复杂的。

Remember I said the pineal gland is how we perceive the spiritual energy of God and encountering a pervasive love.

记得我说过体是我们感知上帝精神能量和普遍之爱的方式。

As the world goes dark, this master switch tells our pineal gland to increase levels of the hormone melatonin in the bloodstream, sort of like a chemical lullaby.

天暗下来时，这个主开关告诉我们的体增加血液中的褪黑激素水平，有点像化摇篮曲。

Melatonin is naturally produced by your brain, and it's released by a very small gland deep within your brain called the pineal gland.

褪黑激素由脑自然产生，由脑深处一个非常小的腺体释放， 称为体。

As you go to sleep and finally begin to drift off, melatonin is secreted by the pineal gland which begins the sleep cycle, which happens multiple times through the night.

当你准备睡觉并开始熟睡时，体会分泌褪黑激素，体开始了睡眠周期，整个晚上会发生多次。

Hormones are made by specialised cells mostly found in the endocrine glands, the hypothalamus, testes and ovaries, and the thyroid, parathyroid, pituitary, adrenal and pineal glands.

激素由特化的细胞产生，这些细胞主要存在于内分泌腺、下丘脑、睾丸和卵巢，以及甲状腺、副甲状腺、垂体、肾上腺和体中。

These cells are found in glands, like the supratentorial pineal gland which is located just behind the third ventricle, or the infratentorial pituitary gland located near the front of the third ventricle.

这些细胞位于腺体中，例如在第三脑室后的脑幕上体，或是靠近第三脑室前的脑幕下垂体腺。

As it gets later and dark outside, the pineal gland in your brain starts to release the hormone, and it binds to receptors deep in the brain to help usher you into dreamland.

当外面越来越晚，天黑时，你脑中的体开始释放荷尔蒙，它与脑深处的受体结合，帮助引导你进入梦乡。