Circulation is blood flow delivering oxygen and fuel and removing waste. Thyroid, CO2, viscosity, and vessel tone all influence it.

Peat's view

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Cold extremities, brain fog, and erectile issues can track poor peripheral flow under low metabolism. CO2 is a vasodilator in physiological ranges.

Cold extremities and inflammation

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If your thyroid function is low, you should check your waking temperature and pulse rate as well as your midday temperature and pulse rate. If your metabolic energy is low, getting cold can slow things down even more and put you over into the inflammatory state. When your feet, for example, are around 90 degrees Fahrenheit, they start producing inflammatory signals that affect the rest of your body.

See also

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References

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