The hypocaust system. The hypocaust system (hypocaustum in Latin) was a heating system used in (wealthy) Roman homes and Roman baths, and the closest thing to central heating today. The hypocaust was a system that circulated hot air under the floor and surrounding walls. Hypocaust construction
CDC: Nearly 9 millon Americans use prescription sleep aids. Nearly 9 million U.S. adults take prescription sleep aids, with use more common among those who are older, female, white and better educated, according to the first government survey of its kind released on Thursday.
The risks and benefits of various prescription sleeping pills can differ. To find the right prescription medication to help you sleep, your doctor may: 1  Ask you several questions to get a clear picture of your sleep patterns.  Order tests to rule out any underlying conditions that may be causing difficulty sleeping.