By Mayo Clinic Staff. Polysomnography, also called a sleep study, is a test used to diagnose sleep disorders. Polysomnography records your brain waves, the oxygen level in your blood, heart rate and breathing, as well as eye and leg movements during the study. Polysomnography usually is done at a sleep disorders unit within a hospital or at a sleep center.
What Does Name Khali Mean EXTREMES in fortune, health and spirituality. You are very versatile, idealistic and intuitive. You either enjoy great success or suffer abject misery. The solution is service to others. Use your leadership abilities for humanity and not for self-glorification.You are bold, independent, inquisitive and interested in research.
The meaning of Kalani is . The sky . Its origin is  Hawaiian . This name is mostly being used as a unisex name. Last year it ranked 1,843rd in the U.S. Social Security Administration list of most popular baby names.