As discussed above, BDNF plays an important role in cognitive function, the development of intellectual disability, energy homeostasis, caloric intake, and cardiovascular risks; thus, we hypothesized that this particular SNP rs6265 of the BDNF gene must have a significant role in the progression of altered quantitative traits, namely, intelligence quotient (IQ), body mass index (BMI), and blood pressure (BP). The gene discussed is BDNF; the disease is Intellectual disability.