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.
Melatonin is a natural, non-addicting hormone supplement that assists with sleep. Millions of people in the United States take it in order to get a good nightâs sleep after having difficulties falling asleep or staying asleep. However, beware! Melatonin may be harmful to your sleep if taken inappropriately.