Asteroid Belt. About 2-4 AU (186-370 million miles) away from the Sun, between the orbits of Mars and Jupiter, is a region called the Asteroid Belt. This region is a ring of tens of thousands of relatively small rocky objects called Asteroids. Asteroids can vary greatly in size.
A normal pulse rate for a healthy adult, while resting, can range from 60 to 100 beats per minute, depending on athletic ability. [ Source: http://www.chacha.com/question/what-is-your-pulse-supposed-to-be ].
1 Normal values for pulse rate depend on age and fitness level. 2  A normal adult has a pulse rate of 72 per minute and an athlete s pulse rate maybe below 50 per minute.3  Patients with an average resting pulse rate above 70 beats per minute can have a slightly higher incidence of heart attacks. Normal values for pulse rate depend on age and fitness level. 2  A normal adult has a pulse rate of 72 per minute and an athlete s pulse rate maybe below 50 per minute.