His opinion is very important.

Health is very important.

You should protect your own health.

Growth hormone plays an important role in promoting the growth of the human body.

It is important to understand the importance of health.

He likes talking about himself and often talks about his experiences and thoughts.

He set out on a journey of soul-searching.

She uploaded a selfie to Instagram.

She took a selfie and uploaded the photo to social media.

He should stop his selfish behavior.