To be a hero, except for the internal aspects of being a good and selfless person, the external, or should we say physical appearance, should also have some kind of heroic feeling . I'm not saying that only strong, tough guys can be a hero. But considering the special meaning hidden in the character of Captain America, I think having a muscular body is quite important. The difference between Captain America and the other superheroes introduced by Marvel is that he thinks as a representation of the United States. He is the nationalist superhero, who fights as a symbol of his country. We can only know it through his name and his star studded with tight uniforms of blue, white and red. Somehow he's wearing the US flag. And also consider the period in which Captain America was created, he was a character destined to fight the Nazis. So being powerful is really important. From the film, this impression may be more direct. From the beginning, Steve Rogers is not a great man and has many health problems, such as asthma. His body resembles that of a weekly teenager who can't afford anything