This text introduces the "Let Them Theory," a stress-management technique advocating for focusing on controllable responses to external stressors rather than reacting to uncontrollable situations. It explains how stress impacts the brain, shifting control from the prefrontal cortex to the amygdala, hindering productivity and well-being. The theory suggests using the phrases "Let Them" and "Let Me" to mentally detach from upsetting events and refocus on manageable actions. The author uses personal anecdotes and expert opinions from Dr. Aditi Neurukar to illustrate the theory's effectiveness in various scenarios, from minor annoyances to significant workplace pressures. Ultimately, the text promotes reclaiming personal power by consciously choosing reactions to stressful situations.