My husband worries a lot. He's kind of a worrywart, actually.

我的丈夫非常担心我的安全，甚至有点杞人忧天。

So people who are anxious, nervous, uncertain people, they tend to be worrywarts.

那些焦虑、紧张、犹豫不决的人，他们往往很杞人忧天。

Worrywarts are people who worry too much.

杞人忧天者是指那些担心得太多的人。

Don't be such a worrywart like your sister.

往好处想想。