New Delhi, Nov. 1 -- Someone has a stroke every 3 seconds around the world, totalling 12.2 million new strokes each year, according to the World Stroke Organisation. Startling, isn't it? Yet, lack of awareness about the early signs of stroke, make it go unnoticed in several people.

A stroke occurs when blood flow to a part of the brain stops or decreases a lot. Without blood, brain cells lose oxygen and important nutrients. Within minutes, these cells can die, leading to permanent damage. This damage can result in long-term disability, or even death in serious cases.

According to medical experts, stroke cases are rising worldwide due to lifestyle or genetic factors. While people over 55 were more likely to have strokes in the past, they...