Share on PinterestExperts say people with pacemakers and other implanted devices should be careful when using fitness trackers on smartphones. 10000 Hours/Getty Images Researchers say it’s possible that fitness trackers on smartphones are interfering with the operation of implanted devices such as pacemakers. They note that the risk is not high, but people with implanted devices should be careful. Experts say the problem could become more prevalent in the future as the use of fitness trackers continues to rise. Our body’s technology may have a problem with our body’s technology. A study published today in the journal Heartbeat indicates that smartwatches and other fitness trackers may interfere with pacemakers and…