The topic of 'Prevalence' is closely related to the podcast episodes provided, as they discuss the prevalence of various mental health and learning disorders.

The episode '264: The Science of Anxiety' discusses the prevalence of generalized anxiety disorder in different age groups and genders, providing context on the condition's impact.

The episode '494- Eating Disorders Comorbid with ADHD: What You Need to Know About ARFID, Anorexia, and Others' discusses the prevalence of eating disorders in the United States, highlighting the significant number of individuals affected and the need for awareness and proper treatment.

The episode '254: The Science of Dyslexia' states the prevalence of dyslexia, estimated at 5-10% of the population, and discusses the impact of this learning disorder.