Best iPhone bicycle mounts: Bracket and bike it. We took three of the top bicycle iPhone holders for a test pedal to see which one kept our little touch-screen buddy safe and sound. Phones make trusty , MP3 players, and cycling computers--as well as handy phones--so they can replace a pocket full of gear on your daily commute or monthly trek.
A normal pulse rate at rest is between 60 and 100 beats per minute. Generally, a lower pulse rate means that your heart muscle is not having to beat too hard to do its job. However, if your pulse goes too low, it can be dangerous.
Many cardiac arrhythmias can result in a high pulse rate and a low blood pressure. In this case, it is the high pulse rate that is causing the low blood pressure. The pulse rate in such cases is very high, and thus the heart is beating so fast, that it is not getting enough time adequately fill itself with the blood.n this case, it is the high pulse rate that is causing the low blood pressure. The pulse rate in such cases is very high, and thus the heart is beating so fast, that it is not getting enough time adequately fill itself with the blood.