![I have a groove straight through the middle of the top of my skull, always did. What is the reason/significance? - Quora I have a groove straight through the middle of the top of my skull, always did. What is the reason/significance? - Quora](https://qph.cf2.quoracdn.net/main-qimg-15711f2877d4a7be0a606a1639196d9a.webp)
I have a groove straight through the middle of the top of my skull, always did. What is the reason/significance? - Quora
![I have a groove straight through the middle of the top of my skull, always did. What is the reason/significance? - Quora I have a groove straight through the middle of the top of my skull, always did. What is the reason/significance? - Quora](https://qph.cf2.quoracdn.net/main-qimg-215e5b2363c92d888300cf43d4c207b2.webp)
I have a groove straight through the middle of the top of my skull, always did. What is the reason/significance? - Quora
![Is it possible for headphones to indent your skull... | Headphone Reviews and Discussion - Head-Fi.org Is it possible for headphones to indent your skull... | Headphone Reviews and Discussion - Head-Fi.org](https://cdn.head-fi.org/a/8590677.jpg)
Is it possible for headphones to indent your skull... | Headphone Reviews and Discussion - Head-Fi.org
![Is it possible for headphones to indent your skull... | Headphone Reviews and Discussion - Head-Fi.org Is it possible for headphones to indent your skull... | Headphone Reviews and Discussion - Head-Fi.org](https://cdn.head-fi.org/avatars/l/121/121196.jpg?1391789642)
Is it possible for headphones to indent your skull... | Headphone Reviews and Discussion - Head-Fi.org
I have a groove straight through the middle of the top of my skull, always did. What is the reason/significance? - Quora
![Is it possible for headphones to indent your skull... | Headphone Reviews and Discussion - Head-Fi.org Is it possible for headphones to indent your skull... | Headphone Reviews and Discussion - Head-Fi.org](https://cdn.head-fi.org/a/8590898.jpg)