My trucks exhaust is leaking from the manifold, as i sit in it for hours daily for programming, is there a correlation between the two?

Unhealthy: Breathing in these noxious fumes is quite unhealthy and this exhaust problem should be avoided or certainly minimized somehow.

Monoxide: Carbon monoxide is silent and deadly. It has no odor. As poisoning begins, people get headaches, very red face, drowsy. If they continue exposure, they enter coma and will die unless revived in time. A leaky exhaust system puts you at risk. Fix it at once.