In The Summer I Turned Pretty season 3, what field interests Belly professionally?

In The Summer I Turned Pretty season 3, Belly is interested in sports psychology. The detail appears in episode 5, “Last Dance,” as Belly and Conrad discuss their future plans while helping with wedding preparations.

Sports psychology is the study of how mental, emotional, and social factors affect athletic performance and participation. Belly’s interest reflects the season’s broader emphasis on adulthood, college choices, work, and professional identity rather than only romantic decisions.

This detail is easy to overlook because the season’s main plot focuses on Belly’s engagement and the continuing love triangle. It also differs from the characters’ established occupations: Laurel is an author, Adam is a venture capitalist, and Conrad is pursuing medical training. Belly’s stated interest is specifically sports psychology.