It's the good old pacemaker, but with a generation of technology. The new pacemaker uses 3 wires, or leads - which are threaded into both sides of the heart to help it pump more efficiently. Researchers say it could help up to half of all heart failure patients - those with a faulty electrical system. In an experiment with 500 people, many had dramatic improvements. In fact, some came off the transplant waiting list, and went back to work.
Several manufacturers expect to get marketing approval for their pacemakers by year's end.
Mice that weren't vaccinated had trouble navigating an obstacle course in the lab. Vaccinated mice had no trouble. The mice not only showed fewer symptoms, their brains showed fewer spots of the toxic plaque that kills brain cells. Human trials are already underway on 3 dozen people in the US and Ireland. Even women taking leisurely walks saw benefits to their hearts.