How Meridian handles health guidance.

Meridian is designed around cigarette smoking cessation support. References to smoking, cigarettes, smoke-free time, and quit progress should be read in that context unless the app clearly says otherwise.

This page covers health-related content inside Meridian, including quit-smoking milestones, Craving Rescue tools, smoke-free progress, cigarettes avoided, money saved, and the life-regained estimate.

Meridian is offered as a general wellness, education, journaling, motivation, and habit-support app. It is not offered as a regulated medical device, clinical assessment tool, or substitute for professional care.

Meridian cannot know your medical history, diagnosis, medication use, pregnancy status, psychiatric history, lung function, cardiovascular risk, nicotine level, carbon monoxide level, or exposure to secondhand smoke.

Do not rely on Meridian for urgent symptoms or serious health decisions. Contact local emergency services immediately for chest pain, severe shortness of breath, fainting, signs of stroke, severe allergic reaction, poisoning, thoughts of self-harm, or any situation that feels dangerous or urgent.

Speak with a qualified health professional before or during quitting if any of these apply:

• You are pregnant, trying to become pregnant, breastfeeding, or recently gave birth.
• You have heart disease, high blood pressure, abnormal heart rhythm, stroke history, asthma, COPD, cancer, diabetes, seizure disorder, or another ongoing medical condition.
• You use prescription medication, nicotine replacement therapy, varenicline, bupropion, antidepressants, stimulants, sedatives, or other treatments affected by smoking or nicotine changes.
• Withdrawal symptoms, anxiety, low mood, irritability, sleep problems, cravings, or appetite changes feel severe, prolonged, or unsafe.
• You are under the legal age for tobacco-related cessation services in your location, or you are supporting a child or teenager who uses tobacco or nicotine.

Meridian may also gently suggest extra support after repeated hard moments. In the app, that prompt is intentionally neutral: it does not diagnose, shame, or recommend a specific product, dose, or treatment.

Meridian's core statistics are arithmetic estimates based on the quit start date, smoking inputs, and post-quit cigarette events you choose to log. They are useful for motivation and reflection, but they are not biological measurements.

Meridian's milestones summarize common smoking-cessation timelines from public-health and medical education sources. They are simplified so they can be understood inside a mobile app. They are approximate, educational, and motivational.

The app currently unlocks milestones at 20 minutes, 24 hours, 48 hours, 1 week, 2 weeks, 3 weeks, monthly points through 11 months, and 1 year. Widgets use the same milestone list.

Your actual recovery can vary based on smoking history, age, sex, genetics, medical conditions, medication use, environment, physical activity, and other factors.

Meridian's current life-regained estimate multiplies estimated cigarettes avoided by 11 minutes. This reflects a widely cited BMJ population-level estimate. It is not a personalized prediction of how long you will live or how much healthy life you will gain.

Later academic work has estimated a higher average figure, which shows why Meridian treats life-regained numbers as broad motivation rather than precise science. Meridian may update this methodology in a future version if the app's underlying calculation changes.

Do not use life-regained numbers to decide whether smoking is safe, whether a slip is harmless, whether medical care is unnecessary, or whether a personal health risk has been removed.

Meridian includes reflection prompts, breathing and delay exercises, reasons for quitting, daily quests, support actions, gratitude, routines, and craving logs. These tools are designed to help you pause, reflect, and stay close to your quit intention.

They are not psychotherapy, addiction counseling, crisis support, psychiatric evaluation, or clinical tobacco-dependence treatment. If cravings feel unmanageable, if you repeatedly relapse, or if stopping smoking affects your mental health, speak with a qualified professional or tobacco-cessation service.

A slip or relapse does not mean you have failed. Meridian can help you restart your plan, but it cannot determine whether you need medical, psychological, or cessation-treatment support.

Meridian's health information is based on publicly available smoking-cessation education from recognized health organizations and peer-reviewed or medically reviewed sources. These sources do not endorse Meridian.

This page should be reviewed when Meridian changes health-related calculations, milestone wording, source lists, sensor integrations, clinical questionnaires, personalized risk scores, AI health advice, medication guidance, clinician features, or medical-device functionality.

For help building a quit plan, Meridian also points users toward professional or public-health support when appropriate. One public reference for quit-plan education is Smokefree.gov's quit plan.

Questions about Meridian's health information, methodology, safety wording, or source list can be sent to dev@novakbozovic.com.

Please do not send urgent medical questions to this email address. For urgent symptoms or immediate risk, use local emergency services.

You can also review Meridian's Privacy Policy and Safety & Crisis Resources.