have made a study of this business of relaxation at colgate university dr donald a laird at the department of psychology has developed some interesting devices to test relaxation with  graph or sleep movement writer dr laird can make an accurate record of the amount of relaxation we get when we sleep this magic desk on a mattress is connected to a pen which writes on a moving sheet of paper every time the sleeper turns tosses or rolls over there is a corresponding peak or valley on the chart where al he's spinning like a merry go round can't settle down well try the other side who that's better comfortable it lasts just a couple of wiggles and jiggles and so to sleep in order to sleep well we must be completely relaxed so the smoother the lines the better the sleep this tightly sealed box proves that a general flow of air about the body is just as important as fresh air for the loan the lack of ventilation as a weakening effect on the human system but on the other hand when there is too much ventilation for a draft the body muscles tighten and we begin to shiver shivering is hard work and it makes us tired in this experiment the mask collects the air the young lady breathe the air is measured and then analyzed in a laboratory to determine the amount of energy she ear the results prove that under pleasant quiet conditions the average person uses ninety percent less energy so do ten percent more work here's an experiment to show the effect of an uncomfortable position sitting like this for two hours would make almost anyone tired the loss of efficiency can be studied in that tapping speed it's the object is not the position of the clock and at the instant the belt solves the young fellow is a victim of that tired feeling in fact he probably gets did he just looking at th if you can try this test yourself remember try to tell where the hand of the clock is when the bell ring ready did you get it right twenty and that one was sixty let's try once more ready what did you get that time well forty was right and don't blame yourself if you didn't make a good score maybe you're up too late last night in many places our homes office and in the automobile our home on wh these elements that control relaxation are important in the automobile relaxation is even more important because it affects safety the relaxed driver is a safer driver because he is able to think more quickly and traffic emergencies wherever we are when we can control the temperature we can still be comfortable and relaxed whether it's hot or cold proper ventilation is important to comfort plenty of fresh air circulating without drafts in our motor cars adjustable sun visors give us protection from harsh glaring lights all i'm sweet home soft comfortable chairs plenty of room to stretch out and relax and in our smoothly riding home on wheels adjustable seats are raised slightly as they are moving forward making relaxation easy for any driver driving controls pedals and levers are within easy effortless reach armrests for long drives and room to relax all these things help to make our cars as pleasant as a properly run the whole a place where your really can relax noise from outside has been cut down by heavy insulation in the steel body on the floor road noises are silent by insulation mat under the carpet well feelings around driving controls on the day are protected by thick mufflers of insulating material a solid  this is the first quiet place i've found now i'm going up to some ice cream for the kids and you'll be just as comfortable riding as you were sitting here in the driveway now just sit back and relax