Cleveland Clinic has been ranked the number one hospital in the U.S. for heart disease and heart surgery for the last 19 years. They must know what they are talking about when selecting the "heart numbers to know". This is the list by the cardiologist Dr. Richard Krasuski and the Clinic Twitter account.

Knowing your risk for heart disease depends on knowing and understanding some important numbers:

- Blood pressure should be less than 120/80 mm Hg

- Fasting blood sugar should be less than 100 mg/dL

- Total cholesterol less than 200 mg/dL

- LDL (bad cholesterol) less than 100 mg/dL, HDL (good) greater than 40 mg/dL

- Waist circumference should be less than 40 inches for men and less then 35 inches for women

- Body Mass Index (BMI) should be between 18.5 and 25. Calculate your BMI here: http://bit.ly/glMJE5