For centuries, scientists have been attempting to come up with an elixir of youth.几个世纪以来，科学家们都在尝试发明一种不老药

attempt to:企图, 努力

I made no attempt to make friends with her.

我没有打算要和她做朋友。

come up with:提出；想出

He could not come up with a proper answer.

他想不出一个合适的回答。

we're only beginning to become aware of.我们很大程度上控制着自己的身心健康

be aware of:意识到，察觉到，知道

He made believe not to be aware of my presence.

他假装不知道我在那里。

I think I was probably the first to be taking large amounts of this molecule.我想我可能是第一个大量摄入这些分子的人

large amounts of:大量

He has a large amount of mail to answer every day.

他每天有大量的信件要回复。