Yeah, fear is probably the most powerful of all human emotions, and when traders become afraid, they will sell a position regardless of the price. Fear leads to panic, and panic leads to poor decision making.
Well if people are in treading they should know what thing is important for them, the profit or being worry without any reason, before trading all traders are must be told not to use their emotions in trading as being emotional can reduce your strength and you can feel low determination of holding which is other name of panic selling and then lose.