How Do Medications and Substances Contribute to Insomnia?
Certain medications and substances, whether prescribed, over-the-counter, or recreational, can lead to insomnia. Stimulants like caffeine and nicotine are well-known for their sleep-disrupting properties. Additionally, some antidepressants, corticosteroids, and thyroid medications may have insomnia as a side effect. Substance withdrawal, especially from alcohol or opioids, can also trigger insomnia due to changes in brain chemistry.