Blue light myths often hide the real reasons behind poor sleep and fatigue. Many people believe blue light only affects the eyes, but in reality, it directly interferes with brain hormones like melatonin, disrupting sleep cycles. Another common myth is that dark mode completely protects sleep, while it reduces eye strain, it still emits blue light that can affect rest. It’s also incorrect to blame only smartphones; TVs, LED lights, and laptops contribute equally to blue light exposure. Understanding these myths helps people make better lifestyle choices, protect sleep quality, and improve overall health through smarter screen and lighting habits.