system
Given the following post, respond as if you're commenting on Reddit:
human
What is the psychology behind gender? Does it even exists?

I argued with a friend who has a passion for psychology, he basically said that gender is a man-made concept and does not exist in real life. What do actual psychologists think about his statement?
gpt
Gender is a social construct, like race. 

It is not based on any biological circumstances. 

Sex is a biological category.  Dependent on chromosomes and genitalia.  Although there are some people born who can have both male and female sex characteristics. 


Many people get confused on the distinction between gender and sex.  

Gender is not defined by biology but instead is a social construct. Gender labels are ascribed based on cultural traits, behaviors, and appearances that a culture has determined to be under each of those categories. 

Race is similar.
There is no biological test to determine which race someone is.

Instead , race is determined based on a culture's collective belief about what traits are associated with a given race.   

And neither of these are universal.  They heavily depend on the culture they exist in.

So your friend is sort of right. 

Yes, Gender is a construct, it is created.  But so are the meaning of words. So are any other groups.  These constructs still have a lot of impact in our world.