Humans spend nearly a third of their lives asleep, and although the evolutionary purpose for sleep remains elusive, current sleep habits are the consequence of the industrial revolution and development of artificial light.  Evidence suggests that losing sleep can cause problems with memory, particularly working memory, the process that allows people to hold information in an easily accessible way while working out a problem.  People who are sleep-deprived also struggle with choosing what to pay attention to and regulating their emotions.  On Monday's "The Extra", host Shannon Brinias discussed the issue of sleep with Dr. Hazem Ubaissi of Optum.  To book an appointment with Dr. Ubaissi for Sleep Medicine services contact our team at 719-866-6627 or visit cosprings.optum.com