Start counting — join the challenge

Free — your streak survives across devices, milestone emails, restart without losing your history.

What changes when you stop

  • Day 1 — Your heart rate and blood pressure start to drop.
  • Day 3 — Nicotine is out of your system; taste and smell begin to sharpen.
  • Day 14 — Circulation improves and walking feels easier.
  • Day 30 — Lung function begins to improve.
  • Day 90 — Coughing and shortness of breath keep decreasing.
  • Day 365 — Your risk of coronary heart disease is roughly half that of a smoker's.

General information, not medical advice.