The test involves simply spitting into a test tube. Cortisol is measured four times – in the morning (8 AM), noon, evening (4 PM) and night (best between 11 PM and midnight). Other steroid hormones, such as estrogen, progesterone, DHEAS and testosterone can be measured along with cortisol in the 8 AM saliva sample, if desired. You carry the test tubes with you during the day (they easily fit into a pocket or purse) so they are handy when it’s time to give a saliva sample. Immediate refrigeration is not necessary. Once the sample set is complete, you mail the tubes back to the lab for analysis in the mailing envelop that is included with the test kit. Both you and your doctor will receive copies of the results, usually within 2 weeks.
SEE ALSO Adrenal Gland ; Amino Acid ; Blood Sugar Regulation ; Endocrine System ; Female Reproductive System ; Homeostasis ; Hypothalamus ; Male Reproductive System ; Nucleotides ; Pancreas ; Pituitary Gland ; Thyroid Gland ; Transcription