Your Blood type is a powerful genetic fingerprint that identifies you as surely as your DNA. A blood type/group is a classification of blood based on the presence or absence of inherited antigenic substances on the surface of red blood cells. These antigens may be proteins, carbohydrates, glycoproteins, or glycolipids, depending on the blood group system. A total of 30 human blood group systems are now recognized by the International Society of Blood Transfusion. The ABO and Rh systems are the most commonly used.

Lyme disease is a tick born infection that is caused by bacteria species which are members of the genus Borrelia. The illness was named after Lyme, a town located in Connecticut, where it was first discovered in 1975. Lyme disease remains to be a critical community health problem in a few regions of America.

Named after a French physician Maurice Raynaud (1834–1881), the phenomenon is believed to be the result of vasospasms that decrease blood supply to the fingers, toes, and occasionally other areas/regions. The process is localized mainly in the upper limbs; lesion is usually bilateral and symmetrical.