If you prefer the top row of keys to always behave as standard function keys without holding the Fn key: 1  Choose System Preferences from the Apple menu. 2  Click Keyboard. 3  Click the Keyboard tab if it's not already highlighted.  Select Use all F1, F2, etc. keys as standard function keys.
In brief: Normal heart rate. Resting heart rate means the rate when not exerting effort, such as sitting, standing quietly, or lying down, usually 60-100 beats/min. A fit athlete will have a lower rate than an average person, as low as 40-60 beats a minute. Maximal heart rate is roughly 220- Age in years, Often, it is recommended aerobic exercise should be at 60-80% Maximal for healthy individuals.
a normal resting heart rate your heart rate when you re completely at rest for the average adult is 60 to 80 beats per minute people who are very physically fit often have slightly lower resting heart rates also heart rate much like weight tends to increase with agenowing yours can be an important heart health gauge your resting heart rate is the number of times your heart beats per minute while it s at rest the average resting heart rate is 60 to 100 beats per minute but it s usually lower for physically fit people and it rises with age