According to Austrian psychiatrist Alfred Adler, birth order does in fact affect your personality. Firstborns are usually overachievers, tend to be CEOs, and have higher IQs. The middle child tends to be more rebellious and a people pleaser, while the youngest ones are more likely to be risk takers and without a care in the world. Nira and Heba discuss how birth order has in fact shaped their characters and relate closely to what Adler theorized. And naturally, during their conversation, they reveal too much information about each other and their own experiences growing up as three sisters.