Many older patients in the U.S. are taking drugs to thin their blood and prevent abnormal blood clotting. The most commonly used one is Coumadin, also known as warfarin. This drug works by interfering with vitamin K. It works because vitamin K is critical for blood clotting. So when you take vitamin K out of the picture, the blood can't clot. But like most vitamins, vitamin K has many other functions in the body besides blood clotting. One of those functions is brain physiology and function. So recently, scientists wondered if taking an anti-vitamin K blood thinner increases the chance of developing dementia.

When it comes to preventing heart disease and keeping your blood vessels healthy, there is nothing that can match regular exercise and a diet high in green leafy vegetables. But now some new research out of Korea shows a simple way to add to the power of exercise and a good diet.

You probably already know that reducing stress is an important piece of the puzzle in preventing Alzheimer’s disease. But new research with mice has found that an alternative therapy often used to promote relaxation could actually prove therapeutic for patients who already have Alzheimer’s. This is an exciting development, as there are currently very few effective treatment options once Alzheimer’s has developed.