Final answer:
A healthy BMI range is 18 to 24.9, indicating normal weight. A BMI below 18 is underweight, over 25 is overweight, and above 30 signifies obesity, which can pose serious health risks.
Step-by-step explanation:
A healthy BMI (Body Mass Index) is typically considered to be a range between 18 to 24.9. This range indicates that an individual is of normal weight with respect to their height. A BMI below 18 suggests underweight, while a BMI over 25 indicates overweight.
Particularly, a BMI above 30 is classified as obese, which can lead to health risks and complications such as cardiovascular diseases, type 2 diabetes, and other chronic conditions. Obesity itself can be influenced by a variety of factors including dietary habits, activity levels, and genetics.