India, May 23 -- The India Meteorological Department (IMD) has sounded a high alert as a relentless heatwave tightens its grip on northwest and central India. The situation is so bad that the temperatures in the national capital and surrounding regions are hovering near 45degC (113degF). These extreme temperatures can not only lead to dehydration but also be bad for your brain, significantly increasing stroke risk.

To understand the impact of a heatwave on the human brain, HT Lifestyle spoke with Dr Sujit Kumar, director and senior consultant, neurology, at KIMS Hospitals (Krishna Institute of Medical Sciences), Electronic City, Bengaluru.

Explaining the brain and heatwave connection, Dr Kumar said, "As a neurologist, I have seen a visi...