The Happy Lungs Project is a public non-profit supporting researchers and clinicians in their work toward finding a cure for RET positive non-small cell lung cancer, while providing helpful information to empower each patient in their own journey and healing. RET positive lung cancer is caused by a rare mutation of the RET gene that causes cancer cells to grow out of control. This “driver mutation” occurs in 1-2% of non-small cell lung cancer patients and is more common among young never-smokers, often the mothers of school-age children. In many cases, it isn’t diagnosed until after the cancer has spread to other organs throughout the body. Donate today. Improve the lives of tens-of-thousands of RET positive survivors and families.