11/02/2026
The Psoas Muscle! A Key Muscle for Stability, Stress & Survival
The psoas muscle is a deep core muscle that runs from the front of the lumbar spine (T12–L5) to the groin. It plays a big role in posture, walking, spinal stability and hip flexion, making it one of the most important muscles for everyday movement.
In kinesiology, the psoas is linked to the Kidney meridian which is associated with fear, anxiety and survival responses. Because of this connection, the psoas often becomes tight or inhibited during chronic stress, trauma or prolonged emotional strain.
Functions of the Psoas
• Stabilises the lumbar spine
• Connects upper and lower body movement
• Supports balance and posture
• Influences nervous system regulation
• Assists with blood sugar and fluid regulation via Kidney energy
Common Symptoms of Psoas Imbalance
A stressedor imbalanced psoas may cause:
• Brain fog
• Fatigue
• Memory or learning difficulties
• Anxiety and fear
• Lower back pain
• Detoxification issues
• Immune challenges (allergies, low immunity)
• Blood pressure or blood sugar imbalances
(including diabetes or hypoglycaemia)
• Tinnitus (ringing in the ears)
Related Organs & Systems
The psoas is energetically connected to:
• Kidneys
• Ears
• Bones & bone marrow
• White blood cells
• Fluid balance and blood filtration
Why the Psoas Matters
The psoas lies so close to the spine and nervous system, it often reacts first during stress. Over time, this can lead to both physical discomfort and emotional dysregulation.
Supporting the psoas through kinesiology, nervous system regulation, gentle movement and stress reduction can help restore:
• Postural balance
• Emotional stability
• A sense of safety and grounding