What Causes Insomnia That Lasts for Weeks?

Chronic insomnia lasting weeks typically stems from stress, anxiety, depression, or underlying medical conditions. Research shows that 30-35% of adults experience chronic insomnia, with psychological factors being the most common triggers. Medical causes include sleep apnea, restless leg syndrome, chronic pain, thyroid disorders, and certain medications like antidepressants or blood pressure drugs. Lifestyle factors such as irregular sleep schedules, excessive caffeine consumption, or bedroom environments that are too hot, cold, or noisy can perpetuate the cycle. Sleep hygiene disruptions often transform temporary insomnia into persistent patterns that require professional intervention to break.