The 15-15 rule is a rule of thumb that states that the total number of hours worked per day should be divided into two 15-minute breaks. This rule is beneficial for both employers and employees, as it encourages employees to take regular breaks throughout the day, which helps boost productivity and improve morale. Additionally, employers can use these breaks to allow employees to take a few moments to refocus, relax, and recharge before returning to their tasks. This helps keep employees refreshed, alert, and productive. Ultimately, the 15-15 rule can help both employers and employees increase their productivity, morale, and overall job satisfaction.