body positivity       
noun [ U ] uk/ˌbɒd.i pɒz.əˈtɪv.ə.ti/ us/ˈbɑː.di pɑː.zəˌtɪv.ə.t̬i/
 身体自爱的
the fact of feeling good about your body and the way it looks
  Body positivity is rooted in loving your body and gaining self-confidence. 身体自爱植根于爱你的身体并获得自信。 
 - More examples
 - Body positivity is a great starting point for many people on the way to deeper self-acceptance.
 - As a social movement, body positivity is the product of the fat liberation movement of the 1960s.
 - Embracing body positivity is a radical act of self care.
 - The article looks at how body positivity and fat acceptance is affecting the fashion industry.