First of all I answered your question with my second sentence.
Second of all, If you like an in depth explanation
Can you provide evidence to support the claim that emotions can be prevented?
like I suggested, then here you go. We as humans are habitual by nature. Correct? correct. We adapt and learn by taking in new ideas and storing them. We are information sponges if you will. How can you logically say that a person doesnt have the subconscious ability to memorize a feeling of a situation of anger or fear, along with memorizing what situations lead to it and simply changing the situation when the time comes. its trial and error all the way but there is an ending point where the situation just doesnt bother you anymore, it is called for lack of a better word habit. Heres the kicker. This explanation right here is something we all do every day and its how most people get through the day.
My thread discusses what to do on top of this to make any situation something that cant bother you or throw you off your balance of thoughts.
I would like to talk to some real people here who discuss "Philosophy", not biology.
And finally, who are you to say what the human mind can and cant do for sure, the mind is initially a sandbox for ideas.
Now please stay on topic or leave the thread.