India, Sept. 11 -- High blood pressure (BP) is a serious and rapidly growing health crisis in India, affecting nearly 1 in 4 adults and causing around 1.6 million deaths every year, according to the Indian Heart Association. While keeping a check on your BP is one part of how you can track your health vitals, there's another part many miss out on.

In a September 9 Instagram video, Dr Alok Chopra, a cardiologist with over 40 years of experience, highlighted this problem, stressing that your BP may look fine during the day, but what happens at night is also very important and can tell you a lot about your cardiovascular health.

According to Dr Alok, your high blood pressure reading is just one part of the story; what actually matters is y...