Probably the greatest difference between man and computers is that the former can do things of his own while the latter can do nothing without being programmed.In my opinion,computers will remain nothing but an extension of our human brains,no matter how clever and complicated they may become. Passage 2 Sleep 30 min Why is it so difficult to fall asleep when you are overtired?There is no one answer that applies to every individual.It is possible to feel"tired' physically and still be unable to fall asleep,because while your body may be exhausted.you donot feel sleepy.It is not so easy to simply"tum off Lack of sleep complicates matters even more.Experts say adults need at least seven to eight hours of sleep a night to function properly When you get less sleep than that on consecutive three nights,you begin to accrue four"sleep debt".As sleep debt increases your body experiences a stress response.Now a vicious cycle has been created:You experience the feeling of being more and more tired,but your body is increasingly stimulated."Power sleeping"for more hours on weekends is only a temporary solution.There is no substitute for getting a good night's sleep on a regular basis. Passage 3 Display of Goods 30min Are supermarkets designed to persuade us to buy more? Fresh fruit and vegetables are displayed near supermarket entrances This gives the impression that only healthy food is sold in the shop.Basic foods that everyone buys,like sugar and tea,are not put near each other They are kept in different aisles so customers are taken past other attractive foods before they find what they want.In this way,shoppers are encouraged to buy products that they do not really need.Sweets are often placed at children's eye level at the checkout.While parents are waiting to pay.children reach for the sweets and put them in the trolley.More isProbably the greatest difference between man and computers is that the former can do things of his own while the latter can do nothing without being programmed. In my opinion, computers will remain nothing but an extension of our human brains, no matter how clever and complicated they may become. Passage 2 Sleep Why is it so difficult to fall asleep when you are overtired? There is no one answer that applies to every individual. It is possible to feel “tired” physically and still be unable to fall asleep, because while your body may be exhausted, you do not feel sleepy. It is not so easy to simply “turn off”. Lack of sleep complicates matters even more. Experts say adults need at least seven to eight hours of sleep a night to function properly. When you get less sleep than that on consecutive three nights, you begin to accrue four “sleep debt”. As sleep debt increases your body experiences a stress response. Now a vicious cycle has been created: You experience the feeling of being more and more tired, but your body is increasingly stimulated. “Power sleeping” for more hours on weekends is only a temporary solution. There is no substitute for getting a good night’s sleep on a regular basis. Passage 3 Display of Goods Are supermarkets designed to persuade us to buy more? Fresh fruit and vegetables are displayed near supermarket entrances. This gives the impression that only healthy food is sold in the shop. Basic foods that everyone buys, like sugar and tea, are not put near each other. They are kept in different aisles so customers are taken past other attractive foods before they find what they want. In this way, shoppers are encouraged to buy products that they do not really need. Sweets are often placed at children’s eye level at the checkout. While parents are waiting to pay, children reach for the sweets and put them in the trolley. More is 30 min 30 min