Temperature control. Have I been missing something in my life?

I just discovered that my Hcigar VT Inbox has a temperature control setting. Question is why. Is this why I haven’t been sleeping good at night. Why my clothes don’t fit right. Why I don’t know the answer to all the questions. (Being sarcastic).
Really though, curious minds want to know.

Original source: https://www.e-cigarette-forum.com/threads/temperature-control-have-i-been-missing-something-in-my-life.962441/