One is stuck at the amazing strides in technology as applied to medicine these days. When I had just finished school and was about to join college my seniors said if you learn zoology it is the stepping-stone for a career in medicine. However I was fascinated with chemistry, physics and maths. Later in medical college I soon realized knowledge in chemistry and physics was worthwhile. Zoology was not relevant. Much later while training in cardiology it was that the advantage of learning mathematics really helped. Calculations of cardiac output, valve areas, resistance, impedance and a host of other measurements were made easy. Principles of fluid-filled catheters or ultrasound transducers were understood better without any struggle. Of late we deal in strain, strain rate, fractional flow reserve and other advances.
