Overview. If you frequently experience shortness of breath or you hear a whistling or wheezy sound in your chest when you breathe, you may have asthma â a chronic condition that causes inflammation and narrowing of the bronchial tubes, the passageways that allow air to enter and leave the lungs.
1 At 47,958 kilometres (29,800 miles) in total length, the Pan-American Highway is the longest road in the world.  The road starts in Alaska, North America and ends in the lower reaches of South America.
10 longest expressways (highways) in India. India is a vast country where Railway still is the biggest mode of transport but road highways too play a major role in connecting two destinations. Moreover, for long drive junkies, long and smooth highways are a dream run. So, here's presenting the top 10 longest and best expressways in India..