Lack of sleep is a big problem throughout the nation. In fact, it is becoming a global epidemic. There are serious health risks; some say that our sleep deficit eventually builds up a debt that our bodies can never fully repay. Sleep problems, such as insomnia, obstructive sleep apnea, restless legs syndrome and many other diagnosable sleep disorders affect up to half of the world’s population. Sleep specialists can help if you think that you are among those who are building up a big sleep debt and you don’t know why.