What Is a Stroke?

A stroke is caused when blood flow in the brain is blocked, depriving the brain of oxygen and causing the death of cells. If the brain goes long enough without oxygen, it can become permanently damaged. Learn more about causes and types, and begin your way to a deeper understanding.

Two Main Causes of Stroke

Strokes occur when blood flow to the brain is blocked. This can either be the result of a clot or a hemorrhage.

Mini Strokes Defined

A TIA is often a precursor to a stroke. It doesn’t kill brain cells like a stroke does, but it can decrease your life expectancy.

From Heart to Head: An Inside Look

To better understand what happens inside the body during a stroke, it helps to see the process.