[mark_l_watson]

I almost died 8 years ago from sitting at my desk too much. Without knowing it I developed a quiet form of deep vein thrombosis and then dropped with two pulmonary embolisms. I am fine now, but it was a close call.

My recommendation is to have a timer on your laptop to remind you to get up and walk around for at least a minute, every twenty minutes.

I also find it beneficial to do a few minutes of random Qi Gong exercises about once an hour.