Every minute counts during a stroke, said Nithin Kamath, co-founder and CEO of Zerodha on Wednesday, while stressing the need to seek immediate medical help within the golden 4.5 hours after suffering the brain condition. 

World Stroke Day is observed every year on October 29 to raise awareness about strokes, which occur when blood flow to the brain is interrupted. During the attack, brain cells die every second; thus, early medications are key to boosting survival.