Cohort Analysis is a method used to study the behavior and performance of a specific group, or cohort, of individuals over time. This group is typically defined by shared characteristics, such as the month they signed up for a service or their age. By tracking this cohort, businesses can identify trends, patterns, and changes in behavior, which helps in making informed decisions. This analysis is particularly useful in fields like marketing and healthcare, where understanding how different groups respond to various factors can lead to improved strategies and outcomes. By comparing cohorts, organizations can better tailor their approaches to meet the needs of their target audience.