سؤال قراءة ستيب محلول — فهم التفاصيل (تدريب 4642)

(1) Is your television killing you? Did you know that every hour you spend watching it can take 22 minutes off of your life? This means that viewing for an average of six hours a day can cut short your life by five years! (2) The above information is based on a study done by a group of researchers at the University of Queensland, Australia. The inactivity associated with TV viewing is dangerous and gives greater opportunities for unhealthy overeating. The researchers also showed that a sedentary lifestyle is as bad for health as smoking cigarettes. The scientists calculated that half an hour of watching TV' is equivalent to smoking one cigarette, with both cutting 11 minutes off a lifespan. Australians watch TV for an average of six hours per day and health effects are likely to be similar in other industrialized countries: the average amount of time spent watching TV daily is four hours in the UK and live hours in the United States. (3) An earlier study associated television viewing with the risk of developing type-2 diabetes and heart disease, as well as with the risk of early death. That research showed that these risks rose by 20% for people who spend just two hours a day in front of the TV. (4) The good news is that exercising for just 15 minutes a day can increase your lifespan by up to three years. It can also reduce the risk of premature death by 14%. Each extra 15 minutes of exercise added to that can decrease this risk by another 4%.