Results, which are based on the medically-used Insomnia Severity Index, are emailed to users.. A new quiz can help quickly assess if you struggle with insomnia. Getty Images/iStockphoto ...

Change in insomnia severity, the primary outcome, was evaluated using the Insomnia Severity Index. Wrist actigraphy was used to estimate sleep and daytime activity levels.

Noninvasive brain stimulation techniques, including transcranial direct current stimulation, are effective nonpharmacologic treatments for insomnia.

Among 178 veterans, Insomnia Severity Index scores fell by an estimated mean of 5.7 points at 8 weeks in the group who participated in six weekly phone calls that specifically covered insomnia ...

For this analysis, patients completed a series of online questionnaires, including the Insomnia Severity Index (ISI) and the Fear of Sleep Inventory–Short Form.

Chronic insomnia and obstructive sleep apnea (OSA) are each keeping about 10% of the general population from getting a restful night's sleep. When combined, they create a condition known as comorbid ...

The primary outcome was Insomnia Severity Index (ISI) scores with the intention-to-treat principle, with secondary and exploratory outcomes including sleep diary measures; self-reported scales ...

Worse sleep quality, higher severity of insomnia symptoms, and shorter sleep duration substantially predicted a greater number of long-lasting symptoms one and three months post-SARS-CoV-2 infection.

It is rare for insomnia to be a mental illness. ... A doctor may also perform a physical examination and use questionnaires that measure sleep and insomnia, such as the Insomnia Severity Index.