The Claim

The central nervous system, endocrine system, and immune system are bidirectionally interconnected, and psychological states directly modulate systemic physiological function.

Source: How I recovered From Hyperthyroidism / Graves Disease

What the research says

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Supports
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Challenges
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These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.

How it works
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In plain English

Your thoughts and emotions can directly affect your body’s internal systems like your hormones and immune response, and those systems can also influence how you feel mentally.

See the scientific wording

The central nervous system, endocrine system, and immune system are bidirectionally interconnected, such that psychological states directly modulate systemic physiological function.

Score breakdown, mechanism chain, raw evidence, ideal studies needed

Fit Body Science verdict — we translate health claims into clear verdicts backed by peer-reviewed research.

Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.