what happens when you smoke too many cigarettes to your lungs from smoking? Smoking and Firefighters

This means your brain isnt getting enough sound input, so it has a harder time making sense of the sounds you hear

Before my door was even fully shut, hed already lit up

As far as sleep stages, it seems that the N3 stage or slow-wave sleep is decreased in smokers, while the N1 and N2 stages are increased, changes that seem to be dose dependent, as they are more evident to heavy smokers compared to mild smokers, or to current smokers compared to former smokers [5,80,85,108]

Poor blood flow in the legs and feet can lead to infections, sores that don't heal well, and sometimes the need to amputate toes or feet

PMID 26826144

We wont go into details, but we need to highlight some essential principles related to nicotine addiction to understand what causes fatigue when quitting tobacco