Answer:
Taking care of your hair, skin, and teeth improve your self-concept because the selfconcept is built by the opinion of everyone around you and the experience you have abou those elements.
Explanation:
First of all, to understand this answer we need to describe the self-concept and how it is built.
The self-concept is a psychological construction with many dimensions, sports, education, social, physical, family, etc. However, it develops thanks to the experiences the subject has involving one part of his or her self and what the people around her or him say about him or her. For example, if you take care of your hair, skin, and teeth. People from all your social circles, might notice how much effort you put on them and they are going to make you know that they notice it, that will provide you a good experience because compliments of how much effort you put in yourself will impact your self-concept in a positive way.
