Question: what are the characteristics of a healthy heart?
Answer: Healthy and Thick Hair. Thin, branched, dry hair can be a marker of health problems, such as thyroid deficiency, stress, and malnutrition. ... 
Strong Nails. ... 
Healthy Teeth and Gums. ... 
Body Mass Index is Balanced. ... 
Enough sleep. ... 
Social Interaction. ... 
Healthy Diet.