Samsung marketed the Galaxy S5’s fitness-oriented specifications heavily, targeting consumers with an active lifestyle. This was apparent from the moment its dust and water-resistant specs were released — a feature that was previously only available in the Galaxy S4’s “Active” variant. In addition, however, the Galaxy S5 also features a surprisingly accurate heart rate monitor, allowing runners and athletes to keep track of their heart rate levels while exercising. The truth is that most people are clueless when it comes to their heart rate. But failing to observe your heart rate could place you at risk for cardiovascular disease, heart attack, heat stroke, and dozens of other adverse systems. “As you age, changes in the rate and regularity of your pulse can change and may signify a heart condition or other condition that needs to be addressed,” said Richard Stein, M.D., professor of medicine and cardiology at the New York University School of Medicine in New York City Your heart rate is essentially the number of beats or pulses your heart makes per minute. Some of the factors which may affect your heart rate include weight, air temperature, physical activity levels, medication and body position. Don’t be alarmed if your…