Does the chat comment affect you?
If the bet is very high, stress increases?
how does stress, some tennica in particular or only with experience decrease?
It can be stressful, but it can also be a great stress reliever in your life. It's a break from everything else going on and you really need to focus on the game and shut out everything else, which can be a very good thing. Like meditation, I guess. Poker is meditation for people who can't meditate.