tobacco smell in nose What Do You Mean You Still Smoke?! COVID-19 and loss of smell:

Cotinine is the primary chemical substance produced when your body breaks down nicotine

31,32 The American Academy of Family Physicians found insufficient evidence to support screening for substances other than opioids

A randomized controlled trial testing acceptance of practitioner-referral versus self-referral to stop smoking services within the lung screen uptake trial

Wang Y, Gao W, Shi X, Ding J, Liu W, He H, et al

However, some important risk factors for CVD (such as tobacco smoking, poor diet, and lack of physical exercise), and environmental pollution have also been linked to an elevated risk of cardiovascular disease