and avoid shallow chest breathing. It’s easy to get in the habit of taking short, shallow breaths without even realizing it. However, it’s important to train yourself to breathe deeply since deep breaths are better at oxygenating your body and can actually help reduce stress. Take a moment to pay attention to your breathing. If only your chest is rising and falling when you breathe, you’re likely taking shallow breaths. You want to use your diaphragm when you breathe, which is a thin muscle underneath your lungs. When you take a deep breath, your diaphragm moves downward and gives your lungs more room to fill up and expand. You'll know you're breathing with your diaphragm if your belly expands when you inhale. Breathing through your nose helps purify the air so you’re not inhaling as many irritants. It also helps regulate the temperature of the air you’re breathing in. If you normally breathe through your mouth, practice closing your mouth and inhaling through your nose. Then, exhale through your nose or mouth, whichever is most comfortable. Inhaling through your nose might be difficult at first if you’re used to breathing with your mouth, but it will get easier over time with practice. Slouching and tensing your muscles makes it harder to take full, deep breaths. Instead, you want to stand up straight, relax your shoulders, and loosen your joints so it’s easier to breathe.  Try slouching forward, lifting your shoulders up toward your head so they’re tense, and taking a deep breath. Then, stand up straight, relax your shoulders, and take another deep breath. You should be able to feel how much easier it is to breathe when you have good posture and you're relaxed. Whenever you catch yourself slouching or tensing up, adjust your posture and take a moment to relax your muscles. Since you don’t usually realize that you’re breathing, it can be tricky to notice whether or not you’re doing it properly. However, you can schedule regular check-ins throughout the day—like first thing in the morning and at lunchtime—to...

How would you rephrase that briefly using Vietnamese?
Hít thở sâu Hít vào qua mũi thay vì qua miệng. Giữ tư thế tốt và thả lỏng cơ thể. Thỉnh thoảng kiểm tra hơi thở để xem bạn có tiến bộ không. Thực hiện các bài tập thở thư giãn mỗi khi bạn cảm thấy lo âu hoặc căng thẳng.