Hormones are the chemicals we make in our bodies that control certain biological and psychological functions.

荷尔蒙是我们在体内产生的化学物质，能够控制特定的生物和生理功能。

So even if your heart can't think, it plays an important role in all kinds of cognitive and psychological functions.

因此，即使你的心脏不会思考，它也在各种认知和心理功能中发挥着重要作用。

16.models of psychological functions can be proposed.

心理功能模型能够得到解释。

Hazing can serve an important psychological function.

捉弄新人会对心理机能有重要作用。

Laughter starts very soon after an infant is born-almost as soon as crying-and it serves many different social and psychological functions, from sharing our joy to intimidating and insulting other people.

笑在婴儿出生后很快就开始了，几乎和哭一样快，它具有许多不同的社会和心理功能，从分享我们的快乐到恐吓和侮辱他人。