premise: How to calculate your body age<br>Find your resting pulse rate. The heart is one of the body's most important organs, and a well conditioned and healthy heart is a big part of overall well-being. A normal heart usually beats at between 60-100 times per minute.
hypothesis: The best heart rate is 110.
reason: It says that a normal heart beats between 60 and 100 so 110 would not be the best if it is not a normal heart.