Explore the visual characteristics of healthy lungs and understand the signs of optimal respiratory health.
John Landry, BS, RRT
John Landry is a registered respiratory therapist from Memphis, TN, and has a bachelor’s degree in kinesiology. He enjoys using evidence-based research to help others breathe easier, live healthier, and improve their overall quality of life.
How to Calculate Pack Years: A Step-by-Step Guide (2026)
Learn how to calculate pack years to assess smoking history and its impact on lung health with this step-by-step guide.
What is an Oxygen Face Tent? (2026)
Explore what an oxygen face tent is and how it delivers comfortable oxygen therapy for patients who can’t use masks or cannulas.
What is a Bubble Humidifier? (2026)
Learn more about bubble humidifiers, their usage in oxygen therapy, operation principles, troubleshooting, and maintenance.
Top 10 Worst Foods for Lung Health to Avoid (2026)
Discover the worst foods for lung health that can trigger inflammation, worsen breathing, and increase the risk of respiratory issues.
What Happens if You Vape On an Empty Stomach? (2026)
Discover what happens when you vape on an empty stomach, including side effects, risks, and how to avoid feeling sick.
The Impact of Climate Change on Respiratory Health (2026)
Discover how climate change affects respiratory health, increasing asthma, allergies, and lung disease risks worldwide.
Air Pollution on Pulmonary Health: A Comprehensive Analysis
Discover how air pollution impacts lung function, causes respiratory diseases, and threatens overall pulmonary health.
E-cigarette or Vaping Use-Associated Lung Injury (EVALI)
Learn about E-cigarette or Vaping Use-Associated Lung Injury (EVALI), its causes, symptoms, and treatment options to protect lung health.
Respiratory Therapy Examination: New NBRC Format in 2027
The NBRC is changing the Respiratory Therapy Examination format in 2027. Learn what to expect and how it affects CRT and RRT credentials.
Why is the Flu Worse This Year? (2026)
Discover why this year’s flu season is more severe than usual and what factors are making it hit harder than in recent years.
Pneumonia Care Plan: Diagnosis, Treatment, and Management
Learn the best strategies for pneumonia diagnosis, treatment, and management with this comprehensive care plan for faster recovery.
Patient Assessment: The 4 Essential Life Processes (2026)
Learn about the four essential life processes—ventilation, oxygenation, circulation, and perfusion—and how to assess them in patient care.
Microplastics in the Lungs: Risks and Protection Strategies
Discover how microplastics enter your lungs, their health risks, and practical strategies to protect your respiratory health.
Dietary Fiber and Lung Function: The Surprising Connection
Discover how dietary fiber supports lung function, reduces inflammation, and promotes respiratory health in this comprehensive review.
Vaping for Teens: The Risks and Hidden Dangers (2026)
Discover the hidden dangers of vaping for teens, from health risks to addiction. Learn why e-cigarettes aren’t as safe as they seem.
The Impact of Red Meat on Lung Health: An Overview (2026)
Discover how red meat consumption affects lung health, its link to inflammation, and tips for making healthier dietary choices.
Pope Francis Faces Health Challenges Amid Respiratory Crisis
Pope Francis faces ongoing respiratory challenges, requiring ventilation amid pneumonia. Vatican updates highlight guarded prognosis.
Is Coffee Good or Bad for Your Lungs? (2026)
Discover how coffee affects your lungs—its potential benefits, risks, and what science says about its impact on respiratory health.
Apgar Score: Overview and Practice Questions (2026)
Learn how the Apgar score assesses newborn health immediately after birth, guiding care with a quick, vital check of five key signs.