While the rest of the world is sleeping, many people have trouble falling asleep due to insomnia. Sleep problems (insomnia) may come and go for most of us, but approximately 10 percent of Americans struggle with chronic insomnia. The negative impacts of insomnia are many, ranging from fatigue, poor memory, and low motivation to an increased risk of depression and mood disturbances. Not getting enough sleep can also lead to weight gain and obesity, high blood pressure, type 2 diabetes, and heart disease. It can even make you look older.