Jennie Kim's right-angled shoulders are charming. What's her fitness secret?

It is said that they have a right-angled shoulder training and three movements.

They are: hold the head with one hand and the neck with the other hand, and extend to both sides respectively; One group 15 times, do 3 groups.

Support the head with two thumbs and stretch upward; A group of 30 times, do 3 groups.

Put your hands together, put your fingers together, and stretch in the upward direction. One group 15 times, do 3 groups.

Hang on, you can do it, too!