breathing in cigarette smoke secondhand does more than irritate the airways. New biological research shows it changes how the body behaves at a molecular level, even people who never smoke. When tobacco smoke What Happens to Your Body,

Steady-state levels of nicotine and cotinine A comparison of blood nicotine and cotinine levels in a group of snus users and a group of cigarette smokers on a day of normal snus use and smoking, showed that the snus users and cigarette smokers had roughly the same levels of nicotine (37 ng/ml) by the end of the day

ALAN BLUM: Thank you, Deborah

Retrieved 20 August 2025

Pregnant or breastfeeding women should also avoid nicotine gum due to potential risks to the baby, with evidence that nicotine can impact the developing brain

My first treatment made such a difference to my wellbeing that I booked a course of Acupuncture

The proposed pathophysiological process offers new insights into the development of non-communicable diseases and may influence the direction of future research in both prevention and therapy