India, Jan. 6 -- Wrinkles and grey hair are just the visible signs of ageing; what matters more is what's happening inside your body. Heart health, metabolism and inflammation play a major role in how fast you age. Dr Sanjay Bhojraj, board-certified cardiologist with over 20 years of experience, shares in his December 24 Instagram post three key things you should do to stay biologically younger for longer. (Also read: Apollo Hospital dermatologist shares 5 common newborn skin mistakes parents should avoid )

"I see this every week in my clinic," says Dr Sanjay. "Patients tell me, 'I'm eating clean. I'm exercising. I'm taking supplements. but I still feel older than I should.' What shocks me most is that many of them are doing more than th...