The New York TimesApr 29, 2016Ask Well: Determining a Target Heart RateThe New York Times - By Gretchen Reynolds“Reaching a heart rate of 160 beats per minute during exercise is safe for someone of his age with a healthy heart,” said Dr. Christine Lawless, the president of Sports Cardiology Consultants in Chicago. So, assuming that you have assurances from your doctor that your heart is healthy, you should be …