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.
Do Sleep Aids Really Work? Yes and no. There are hundreds of sleep aids on the market. From prescription pills, to all-natural sleep aids, to herbal teas, companies promise the world, but rarely deliver. Generally, sleep aids are either 1) expensive, powerful and dangerous or 2) weak, affordable and ineffective. For us, neither of those are good options.