In 2017, Stranger Things star Gaten Matarazzo helped form a charity for a disorder affecting roughly one in a million people; nine years later, its partners published 37 recommendations to guide medical care

• This has been a longstanding challenge for people with cleidocranial dysplasia (CCD), a rare genetic disorder that affects the development of bones and teeth.
• Stranger Things actor Gaten Matarazzo, who was born with the condition, has used his public platform to raise awareness and support people facing sim