Sit or stand still and relax for a few minutes
Place your index and middle fingers on the inside of your wrist below the thumb or on the side of your neck beside your windpipe
Press lightly until you feel a steady beat
Do not use your thumb
Count the beats for 30 seconds
Multiply that number by 2 to get beats per minute
If the rhythm feels irregular, count for a full 60 seconds
Record the result if needed