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Thyroid system ray Peat
Thyroid system

Thyroid & your health

By looking at symptoms as well as measuring body temperature and pulse rate, you can get an indication of your thyroid function. 

Below you find a list of some of the symptoms, which are connected to low thyroid function. Instructions  and tables are also given for measuring your pulse and temperature.

If you have several of the symptoms listed and your body temperature and pulse rate are consistently significantly below 98.6°F (37 °C) and 85 beats per minute, you might have a problem with your thyroid function. 

In BiochemNordic’s health program you can learn much more about thyroid function and how to support it. 

Symptoms of low thyroid function 

  • Acne
  • Allergies
  • Anemia
  • Arteritis
  • Candida
  • Blood sugar issues
  • Cold hands and feet
  • Digestive problems
  • Depresion
  • Fatique
  • Hair and skin problems
  • Headaches
  • High cholesterol
  • Infertility
  • Menstrual problems (PMS, endometriosis)
  • Muscle and joint pain
  • Premature aging
  • Infection and inflammation
  • Water retension
  • Weight problems (gain or loss)
Ray Peat pulse rate

Thyroid & stress hormones

Hypothyroid people often compensate for the low cellular energy by increasing the stress hormones (adrenaline and cortisol). The stress hormones can keep the body temperature and  pulse rate artificially up. Often the stress hormones are high in the morning before eating breakfast.  

Sometimes the adrenaline is up to 40 times higher in a hypothyroid person compared to a person with good thyroid function, this leads to a very high pulse rate, which can create problems with falling asleep and waking up during the night. The high adrenaline also tends to cause cold hands, feet and nose.

If the stress hormones are high, there will be a drop in temperature and pulse rate to the hypothyroid level after breakfast, as the stress hormones are allowed to normalize, with the increasing blood sugar. 

By measuring the temperature and pulse rate before and after breakfast, it is possibly to separate the effect of the stress hormones from the actual thyroid function.

Measuring thyroid function

Keeping a chart for 14 days of both temperature (taken orally, under the tongue) and pulse rate measured before and after breakfast will give a good impression of the metabolic rate, as well as the stress hormones. You can find tables to note down your measurements below. 

It is important that the breakfast contains protein, salt and good carbohydrates in order for the stress hormones to come down; it could be eggs with salt and orange juice or cheese with fruits. 

It is good to wait about 20 minutes after breakfast to take the after breakfast measurements. Normally, the temperature and pulse rate will increase when eating breakfast to values of about 98.6°F (37 °C) and 80-85 beats per minute respectively. These values indicate good thyroid function and should stay stable during the day. 

Hot weather or sleeping under an electric blanket increases the body temperature towards normal in a hypothyroid person, thus in these situations the temperature is not valid and the pulse rate is the important factor in determining the thyroid function.

If some form of thyroid medication is used, this temperature and pulse method is a good way to evaluate the effect of the medication. You can read more about thyroid replacement therapy in Module 16 of  BiochemNordic’s health program. 

Ray Peat temperature
BiochemNordic nutritional and metabolic counseling

Free Feedback

Get BiochemNordic’s feed back on your thyroid function, by sending a message listing your symptoms and the table where you have noted down your pulse and temperature measurements. 

You will get my opinion on your metabolic state and health situation, as well as how our services best can help you. 

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