The first droblem No time. "I don’t have any time to exercise. I’m too busy. " But you don’t need a lot of time to exercise. Short periods of exercise are just as good as long periods of exercise. The solution You should take two or three walks every day. For example, ten minutes in the moming, ten minutes at lunch, and ten minutes after dinner.
You can get enough exercise to your body by

单项选择题This vaccine is egg - based. What if I’m allergic to eggs You should avoid the vaccine. If you’re in a high - risk group and you come down with the flu, see your doctor immediately. Antiviral medications, given within 24 to 48 hours of the onset of symptoms, can dramatically improve one’s outcome. The vaccine should avoid application to a person who

单项选择题Apart from statistics, it might be helpful to look at what smoking tobacco does to the human body. Smoke is a mixture of gases, vaporized chemicals, minute particles of ash and other solids. There is also nicotine, which is powerful poison, and black tar. As smoke is breathed in, all those components form deposits on the membranes of the lungs. One point of concentration is where the air tube and bronchus divides. Most lung cancer begins at this point. Nicotine Can be best described as