VO2 Max is the most accurate measure of cardio-respiratory fitness. It measures the maximum amount of oxygen that the body can use in one minute per kilogram of body weight (mL/kg/min). During exercise, the heart rate responds by increasing, as does the delivery of oxygen to the body.

Although it may seem desirable to have a slower pulse, if your heart rate gets too low, you can develop symptoms and complications. The condition, called bradyarrhythmia, refers to a heart rate that is consistently lower then 60 beats per minute (bpm).

Tachyarrhythmia is the medical term used when your heart rate gets too fast. Tachycardia is diagnosed when your heart rate, or pulse, exceeds 100 beats per minute on a regular basis. You can also develop fibrillation, which means your heart is beating faster than 350 beats per minute.

Music is an important part of many people's lives. Whether recalling good times or bad, most people remember a certain song that was playing in the background. Music is tied into human emotion and can make a person happy, sad, anxious or self-confident.

Your heart is essentially a pump, designed to circulate blood throughout your body. Your bloodstream carries nutrients and oxygen to cells throughout your body, and carries away carbon dioxide and other byproducts of cellular metabolism.

Checking your pulse during and after exercise can provide pretty accurate assessment of your overall fitness. This is because the more physically fit you are, the faster your body recovers and heart rate returns to its normal level.

When you exercise, you burn more calories because your working muscles require more fuel. After you finish your workout, your body begins a process of recovery. The more intensely that you work out, the longer your body takes to recover. During the repair process, your body continues to burn additional calories.

For women, watery, odorless discharge while running is completely normal and does not require medical treatment. The amount of discharge you experience directly correlates with your menstrual cycle.

Magnesium plays a significant role in hundreds of structural and functional processes in your body. It is especially necessary in the transport of ions that conduct nerve impulses for normal muscle contraction and heart rhythm.

Normal resting heart rates, or "pulses," for people over 10 years old are between 60 and 100 beats per minute, although very well trained athletes may have resting heart rates as low as 40 beats per minute.

Your diet provides the energy and raw materials your body needs to function. However, different foods have varying effects on your health and heart function. Some foods can negatively impact your cardiovascular system and increase your risk for disease.

Average resting heart rates depend on several factors, including age, gender and level of physical fitness. Generally speaking, a resting heart rate in the range of 60 to 100 beats per minute is normal for men and women.