What can you do?

　　You can counteract these ill effect and posture problems by sitting upright and having a support for your lower back and neck. Adjust the position of your seat in such a way that you can drive at ease without any discomfort. The backrest of the seat should be straight up, and not pulled down too much. Respiratory(呼吸的）ProblemsExposure to heavy traffic implies exposure to poisonous rases that are emitted by vehicles. It is believed that the transportation sector in the US is resporbible for a quarter of the country’s greenhouse gas emissions.

　　Our lungs arc like sponges, soaking in everything that is breathed in by our respiratory system. The smoke coming out of the tailpipes of vehicles presents a serious threat to human health. Prolonged exposure to traffic emissions can cause，vious respiratory diseases including lung cancer.

　　What can you do?

　　There are ways to avoid breathing in polluted air If you can, avoid driving in parts of your town with heavy traffic congestion. However, if you find yourself driving through such areas, roll up your car windows to minimize exposure to harmflil gases. If you plan to go out for a walk or run, do it in a place where you get loads of fresh air. Eat foods that are rich in antioxidants(抗氧化剂)，and exercise regularly so that your immune system is strong enough to fight off potential threats to your health.

　　Travel and traffic are two things that are absolutely unavoidable，and that is wh we should try to be as comfortable as possible, to be stress-free and illness-free!

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