how warm people feel を英語に訳すと？

There is no connection between personality and how warm people feel.

There is no connection
- between
- - personality
- - and
- - how warm people feel.

この how warm people feel の部分は、people feel warm ということについて、people が いかに（how）warm を feel するか、という意味にするために、warm ということばのまえにhowをつけて、それを前にもってきています。
People feel (warm).
People feel (how warm)
(how warm) people feel
It has no relation to (how warm) people feel.

People feel (strict) [about these rules].
People feel (how strict) [about these rules].
(how strick) people feel [about these rules].
I don't know (how strick) people feel [about these rules].