Re: Early morning exercise question
I have never heard anything like that, but I also don't know anyone that can hop out of bed, put on the shoes and go straight out the door. Unless you have a pre-existing medical condition (which should place certain limitations on your exercise regimen to begin with), there's no reason not to exercise as soon as you feel awake and energized enough to do it. I have been doing cardio every morning within 30 to 60 minutes of waking up for around a decade with no adverse effects. Unless you're at a higher risk of heart attack or stroke, you should be just fine.
Keep your body lean, your blood clean and your mind sharp. -Rollins