Rosalyn Sussman Yalow, the second American woman to win the Nobel Prize in Physiology or Medicine, born in 1921 in New York City, USA, of poor Jewish parents, Clara and Simon Sussman. Due to her talents, firm determination, she overcome many difficulties in obtaining her Ph.D. degree in Physics in 1945, from Illinois University, USA. Although she was a student of Nuclear Physics but she made profound contribution in the field of Physiological Sciences. With th