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席梦思是高级的弹簧床垫,睡在上面松软舒适。但容易发生脊柱侧弯。有人调查发现,以仰卧姿势睡于弹簧床上,有74%的人脊柱发生了程度不一的侧弯;而在侧卧时,几乎所有的人脊柱都发生了侧弯。电热毯是利用发热元件将电能转为热能来御寒的。如果每天使用2小时,人体约损耗水分200克。长时间使用电热毯,会使人体的水分散发过多,出现口干舌燥、皮肤周围干燥、咽痛咳嗽等症状。如果被子里温度较高,而室温较低,人的呼吸道粘膜等的毛细血管因体热处于扩张状态,人体会不自主地较深较快地呼吸,于是大量的冷空气
Simmons is a premium spring mattress that sleeps loosely and comfortably. But prone to scoliosis. Someone survey found that sleeping in a spring bed in supine position, 74% of people in the spine have varying degrees of curvature; in the lateral, almost all of the human spine have occurred. Electric blanket is the use of heating elements to convert electrical energy into heat to keep warm. If you use 2 hours a day, the human body consumes about 200 grams of water. Prolonged use of electric blankets, will make the body’s excessive moisture distribution, dry mouth, dry skin around, sore throat and cough and other symptoms. If the quilt temperature is high, while the room temperature is low, human respiratory tract mucosa and other capillaries in the expansion due to body heat, the body involuntarily deeper and faster breathing, so a lot of cold air