Key Physical and Neurological Changes During the First Week of Quitting Smoking

Quitting smoking triggers significant changes in the body and brain. Nicotine withdrawal causes cravings due to reduced dopamine levels, with triggers like stress or familiar routines. Physically, within 20 minutes, heart rate and blood pressure begin to normalize, and by day three, nicotine clears, easing breathing. Sensory improvements in taste and smell start by day two. These early changes highlight both the challenges and health benefits of quitting smoking.