Why this deep muscle may influence the lower back, pelvis, nerves, and the ability to rest in a deep squat. The psoas major is often described as a tight hip flexor that simply needs to be stretched. That explanation is easy to understand, but it is incomplete. The psoas is a deep muscle that connects the lumbar spine directly to the femur. It helps coordinate the lumbar spine, pelvis, and hip, while much of the lumbar plexus lies within the substance of the muscle. Because o

“Pain is not the disease. It is often the body’s way of telling us that something deeper needs attention.” Looking Beyond Where It Hurts When people experience musculoskeletal (MSK) pain, their first question is usually: “What treatment will make this pain go away?” At YOON CLINIC, we begin with a different question: “Why is this tissue producing pain in the first place?” Pain is rarely the root problem. More often, it is the result of an underlying movement or structural dy

Modern medicine has given us increasingly sophisticated ways to identify diseases. We can classify, label, and diagnose conditions with remarkable precision. Yet in daily clinical practice, an important question often remains unanswered: Why do two people with the same diagnosis recover so differently? One patient improves rapidly, while another continues to struggle despite receiving what appears to be the same treatment. At YOON CLINIC, this question has fundamentally shape

A Clinical Look at How "Double Neural Entrapment" Triggers Upper-Limb Paresthesia and How We Treat It By Yoon Clinic If you have ever been in a motor vehicle collision, you know that recovery isn't always straightforward. Sometimes, the most troubling symptom isn't sharp joint pain, it's a persistent, unsettling feeling of numbness, tingling, or "pins and needles" running down your arm. When patients come to our clinic with post-accident arm numbness, they often assume the i