Heightened emotions can sometimes get in the way when you're trying to deal with a high-stress situation. For example, if you've got to give a big speech or presentation, fear might cloud your ability to think clearly and execute your delivery. Knowing how to mute that sense of fear can come in handy when you have to overcome challenges at work and school. Emotions have a role to play in decision-making, but sometimes it's important to set them aside and assess other factors. For example, maybe you feel devastated after a breakup and are tempted to move to a new city so you don't have to see your ex. If you're able to see beyond the sadness and weigh other factors, you might be less likely to drop everything and leave. Numbing your emotions can be a useful defense mechanism. Maybe there's a bully at school, or you have a sibling with whom you don't get along. If you're in a situation that's tough to change, you can protect yourself by temporarily shutting off your feelings to help you get through the day. We feel emotions for a reason. They are essential to navigating the world and, ultimately, surviving with our mental health intact. If you routinely numb your emotions, you're cutting yourself off from experiences that your mind needs to feel. Fear, sadness, despair, and other emotions that don't feel good to experience are nevertheless just as important as joy and excitement. If you don't let yourself feel sad, it'll be harder and harder to feel happy. Rather than numbing your emotions, learn to get in touch with them and use them to your advantage.

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Write a summary of the previous text in Vietnamese:
Thử chế ngự cảm xúc khi bạn đối mặt với thách thức. Tạm thời gạt cảm xúc qua một bên khi bạn cần quyết định điều gì đó. Làm tê liệt cảm xúc khi bạn ở trong tình huống không thể kiểm soát. Tránh làm tê liệt cảm xúc quá thường xuyên.