International calls travelers periodically really should move around and extend their legs along with drink plenty of water to stay replenished with water said Padma Shri and Medical professional B C Roy National AwardeeDr KK Aggarwal President Heart Health care Foundation of India MTNL Great Health Mela. Longdistance travel can cause fatal blood clots inside lungs. Cancer people people who have recently experienced major surgery say for example a joint replacement and women on birth control...