one physiological effect of cigarette smoking is a decrease in Addressing concerns about cessation and mental health: theoretical review and practical guide for healthcare professionals The Short and Long Term

The issue literally means that you suffer from shortness of breath while sleeping

This study focused on use patterns of an e-vapor product among adult cigarette smokers who have little or no prior experience of using smoke-free products, or who are dual users of cigarettes and smoke-free products

Odor Eliminator Spray If you dont want to rely on natural methods to eliminate the smoke smell, there are many options with a car-specific odor eliminator sprays that are easy to use and provide long-lasting freshness

*The above information is for reference only, please consult your doctor for detail

A common slang in the UK, fags is euphemism for cigarettes