Spend most of the day sitting (bank teller, desk job)
Spend a good part of the day on your feet (teacher, salesman)
Spend a good part of the day doing physical activity (waitress, mailman)
Spend most of the day doing heavy physical activity (messanger, capenter)
I can hold a conversation while working out and do not break a sweat
I am breathing very hard and challenge myself.
Always break a sweat & have an elevated heart rate. I cannot hold a conversation.
Don't talk to me, don't look at me. I m here for a purpose and I might die today.