The density of the bentonite particles. calculated from these data is 2.457 _+ 4 x 10 -7 g/cm 3. and the compressibility is 0.12 x 10 -12 _+ 2 x 10 -20. cmZ/dyne. The +_ values are asymptotic standard errors.
The bottom line is this: You burn fat and build cardiovascular fitness at both low and high exercise intensities. The logic is that at lower heart rates you burn more fat. At higher heart rates you supposedly burn less fat but get a better cardio workout. This is partly true, but let's take a closer look. For a 20 minute workout performed at a lower heart rate, you burn proportionally more fat as a fuel source, but fewer overall calories per unit of time.
So people who have fast arrhythmias should avoid caffeine-containing foods. Caffeine can make symptoms such as palpitations stronger and more noticeable. Since caffeine is a stimulant, it speeds up your heart rate, making your heart beat even faster and making symptoms like chest pain or lightheadedness worse. In some cases, large amounts of caffeine can even trigger a new episode of an arrhythmia by irritating your heart's conduction system.