What is health ? Health is a state of complete physical, mental and social well-being and not merely the absence of disease or infirmity. Why is health so important ? Living a healthy lifestyle can help prevent chronic diseases and long-term illnesses. Feeling good about yourself and taking care of your health are important for your self-esteem and self-image. What are signs of poor health ? mindful of some of the less than obvious signs that you may not be as healthy as you think you are. You snore. ... Your skin isn't clear. ... The whites of your eyes aren't white. ... Your toenails and fingernails are an odd color or texture. ... You're gassy. ... You're always tired. ... Your urine isn't a "pale, straw color." How to maintain healthy lifestyle? 10 Healthy Lifestyle Tips for Adults Eat a variety of foods. Base your diet on plenty of foods rich in carbohydrates. Replace saturated with unsaturated fat. Enjoy plenty of fruits and vegetables. Reduc...