far-infrared slows growth of certain cell lines in a pattern linked to heat shock protein levels
FIR irradiation suppressed proliferation of certain cancer cell lines (HSC3, Sa3, A549) in a manner controlled by basal expression levels of heat shock protein HSP70A, with overexpression of HSP70 inhibiting FIR-induced growth arrest.
What this means for you
Your cells produce heat shock proteins as a natural stress response — and research suggests their baseline levels may influence how cells respond to far-infrared exposure. While this is early-stage cellular science, it points to far-infrared's potential role in supporting the body's own regulatory processes at a fundamental level.
The published research
Far infrared radiation (FIR): its biological effects and medical applications.
Photonics & lasers in medicine · 2012
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