Question for those with military/straight neck (loss of cervical lordosis)

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Also check this post in another thread:

List of my favourite resources on YouTube to learn anatomy

It’s all about the layers on layers on layers of back muscles. No wonder they can make the whole back, ribcage, shoulders and neck stiff. [backmuscles] [20231004_231222] A few more in-depth lectures: [Back Muscles in a Nutshell - Anatomy Tutorial] [Muscles of the Back (3D Anatomy Tutorial)]