The vascular system consists of arteries, veins and other blood vessels that deliver oxygen and nutrient-rich blood to every cell in your body. The arteries and veins can become damaged over time, hindering blood flow and increasing the risk of chronic disease.
Dr Oz: What Happens When You Die? Have you ever wondered what it really feels like when you die? Dr Oz claimed that, with the help of new research, we have a better look than ever before at what happens during the seven minutes of life. During the final minutes before death, the person will look as if theyâre sleeping. The heart slows, their pulse weakens, and their blood pressure drops.
Unconsciousness occurs within about 30 seconds, so it's not as if you would have very much time to contemplate what is happening. Once the brain goes unconscious, tissue begins to die after about 5 minutes of oxygen starvation. After this point, there may only be small islands of activity remaining in various brain structures. After ten to fifteen minutes, complete brain death will usually occur.