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.
CPAP is one of the most effective sleep treatment options available. Thereâs just one problem howeverâsome people canât stand it. One study estimates 30-50 percent of CPAP users donât like the treatment; another survey discovered that about half of patients stop using the device within 1-3 weeks of it being prescribed.