Charcot-Marie-Tooth Disease (CMT) Biological Sample Collection for iPSC Generation and Biobanking Charcot-Marie-Tooth disease (CMT) is a condition affecting the nerves and muscles. The New York Stem Cell Foundation (NYSCF) is studying CMT by collecting samples like skin and blood to create "pluripotent" stem cells. These are special cells that can become any type of cell in the body. This helps scientists understand diseases and could lead to new treatments or cures. They also perform genetic testing on DNA, which is the body's instruction manual. If a gene (a part of DNA) has abnormal instructions, it may cause disease. To join, participants: 1. Complete health questions. 2. Give a skin and/or blood sample. 3. Provide a saliva sample. 4. May be contacted later for more info or other studies. Key Points: - Participation requires health questionnaires and sample collection. - No treatments or drugs are involved; it's not a clinical trial. - Participants must be 5 years or older and have a CMT diagnosis or be healthy controls. Eligibility includes written consent from adults or minors' guardians. Some medical conditions might exclude you from the study.