You can literally see him grow before your eyes. If you can't finish a workout in 45 minutes to an hour, you're wasting your time and cluttering up the gym unnecessarily. There is a real easy way to determine if this is one of your problems. The nerves connect. As you may have noticed, the old Puritan work ethic is gone.
Men actually go into the gym thinking they can build big muscles with small weights.
It takes heavy weights used to stimulate the large muscle groups to build large muscles and gain large quantities of muscular body weight in an hour or less. Arthur Jones tried to point all this out a generation ago but very few people listened. Some of the books in which he pointed this out are now collectors items. I have to bite my tongue. Most men start with the heavier exercises, such as the bench-press, and then work down to the lighter exercises.