The author shares their personal experience with sleep apnea, a condition that went undiagnosed for years and caused significant mental and physical distress. They describe their journey to diagnosis and treatment, including the use of a CPAP machine and other therapies. The author notes that sleep apnea is a common and underdiagnosed condition, and that addressing the root cause is crucial for effective treatment. They also reflect on how their experience has impacted their life and personality.