ゆだんはきんもつ

to be vigilant

Example

from doctor to patient/user

しゅじゅつは　ぶじ　おわりましたが、ゆだんは　きんもつですよ。

The surgery was a success but you have to be vigilant.

いしょくどうげん

you are what you eat
かぜはまんびょうのもと

The common cold can develop into all kinds of illness.
かんようく

idiom
ことわざ

proverb
すめば　みやこ

Home is where you make it. (a Japanese proverb which means wherever you live, once you get used to living there, it becomes home)