When you work out, do you push yourself too far — or not quite far enough? A target heart rate can help you figure this out. For women in their 20s, 100 to 170 beats per minute is ideal. Women in their 30’s should shoot for 95 to 162 beats per minute. No heart rate should surpass 200 beats per minute. That means you’re straining yourself and causing undue stress to your heart. If the rate is too low, then the intensity of your workout may feel “light” or “brisk.” It’s best to push yourself slightly harder to achieve an ideal heart rate. Doing so will ensure you see better results in weight loss and heart health. If you have a heart condition, though, you’ll want to speak with your doctor before undergoing any exercise program.