Unfortunately, the researchers found that only about 3% of Americans surveyed follow all four habits. However, the numbers improve immensely when you consider how many people follow one of these requirements.Related: Here's Another Reason To Take The Stairs Today Only 10% Americans maintained a healthy body fat percentage, but a whopping 71% were found to be non-smokers. Meanwhile, 46% exercised regularly and 38% ate healthfully. Beyond the lifestyle test, researchers also considered blood test results for biomarkers for good health, like cholesterol. They found that following even one or two of these habits could reduce your risk of poor heart health. "I would expect that the more healthy lifestyles you have, the better your cardiovascular biomarkers will look," one author stated in a press release When you get into the details, these numbers suggest that many more Americans are on the right track — it's just a matter of adopting one or two more habits.Related: Are You Too Much Of A Perfectionist At The Gym?