Sleep problems may be associated with specific genes in our bodies. Research indicates that there is a genetic link between insomnia and psychiatric disorders such as depression or physical conditions such as type 2 diabetes. Survey shows that up to 20 percent of Americans and up to 50 percent of US military veterans are dealing with sleep problems. Insomnia can seriously affect a person's healthcare system and make them weak internally. Chronic insomnia can cause various long-term health issues such as heart disease and type 2 diabetes as well as mental illness such as post-traumatic stress disorder (PTSD) and suicide.