Such heart rate at rest indicates cardiac efficiency of an individual, and ranges between 60 to 100 bpm (beats per minute) for adults. However, values closer to the lower limit of this range qualify as a good resting heart rate. In fact, well trained athletes show a resting heart rate between 40 to 60 bpm.
Rule 1. With a computer, use only one space following periods, commas, semicolons, colons, exclamation points, question marks, and quotation marks. The space needed after these punctuation marks is proportioned automatically.
alt-text: If things are too quiet, try asking a couple of friends whether a couple should always mean two. As with the question of how many spaces should go after a period, it can turn acrimonious surprisingly fast unless all three of them agree. Summary: there's not universal agreement.