A. Chest stretch

1. Keep your legs hip-width apart
2. Stretch the hands backward and fold together
3. Take a deep breath, raise your arms and stretch as much as possible, and raise them
4. Open the chest
5. Hold your breath for 5 seconds and stay tense
6. Exhale slowly and relax your arms

Repeat this exercise 5 times

B. Embed in the head

1. Keep your legs hip-width apart
2. Let your arms hang down on your side
3. Take a deep breath and move your shoulders towards the head as much as possible (or to the earlobe)
4. Embed the head in the shoulders
5. Hold your breath for 5 seconds
6. Exhale, lower your arms

Stand up after repeating this exercise 5 times, and turn your head clockwise and counterclockwise for one time respectively.

C. Circling hands

1. Keep your legs hip-width apart
2. Put your hands together in front of your eyes and press your elbows together
3. Inhale deeply and straighten your hands up slowly
4. Keep your hands close to your ears when moving up
5. Hold your breath for 5 seconds
6. Slowly open your arms when you exhale
7. Straighten your arms and come down in a semicircle
8. Palm down

Repeat this exercise 5 times.