In the-early nineteenth century, most of the doctors followed their clinical expertise to treat the patients. Due to the availability of investigations in the mid-nineteenth century, many doctors rapidly and enthusiastically included laboratory investigations in their clinical practice. During the post–World War II period the term “biomedicine,” was coined which became a common word for the doctors and scientists. As the focus increased on the role of proteins and amino acids made the bio medical science into “molecularization” and “macromolecularization” of biology and medicine.