If a clot moves to the lungs, it can cause breathing difficulties and even death. Annually, between 100 and 150 travelers arriving at Narita Airport suffer from some form of this problem, says Toshiro Makino, head of Nippon Medical School’s New Tokyo International Airport Clinic.
आजपर्यंत असे समजले जात होते की सरड्याची जीभ खरबरीत आणि चिकट असल्यामुळे त्याचा सावज सहज जिभेला चिकटतो.