I Prefer Intellect to Good Looks

So many times there is a feel of fear, a stage fear, a communication fear, an emotional fear so what's the cause of this fear, if a keen observation is made on this factor, one thing brings greater attention, that is the "Intellect", notice whenever there is a fear, just before to feel that sensation, intellect part was switched-off, when that happens mind directly tries to react to the situation and outcome is totally unexpected anything can happen, like the effect of watching the film "Conjuring", "where there is a fear, there is lack of or no intellect."