A new animal study shows that smoking ruins productive sleep, leading to mood changes, anxiety, and depression.
Cigarette smoke exposure
Researchers from the University of Rochester Medical Center claim that smoking leads to changes that affect functioning of the lung’s circadian clock.
They exposed two groups of mice for short-term (three days and 10 days) and long-term (six months) cigarette smoke.
Lead researcher Irfan Rahman and his team found that the clock gene expression was changed and lung inflammation was increased with the smoke exposure.
Impact on brain and pulmonary function
Researchers also exposed human lung tissue to tobacco smoke. It seemed to have an effect specifically on a molecule called SIRTUIN1.
“This study has found a common pathway whereby cigarette smoke impacts both pulmonary and neurophysiological function,” Rahman said in a statement. “Further, the results… could improve both lung and brain functions in smokers.”