Anti Aging Foundation

Additional Information:

I hear this all the time, “I'm tired, I'm sore, I don't feel good but my doctors says all my blood test are normal.”

There are two reasons for this and they are fairly simple.

Reason 1) Most annual medical check-ups involve the physician ordering only routine blood tests, if blood tests are ordered at all.

Reason 2) The lab values for “normal” and not the “optimal” lab values.

Blood tests have benefits that go far beyond disease prevention. For example, by monitoring levels of sex hormones, you can take decisive steps to enhance your quality of life, perhaps by correcting a depressive mental state, erectile dysfunction, obesity, or by improving your memory and energy levels.

For this reason we need to look at more than just the routine blood test that most physicians are ordering. I will go over some of the 10 most important labs test in a minute, but first let's talk about reason number 2.

The lab values for “normal” are not necessary “optimal” lab values. May of the “normal” lab values are just too vague. So, it is possible to have lab values that are not optimal but “normal” according to the labs values, therefore your doctor says your fine.

Basically, you are just not sick enough for your doctor to find something wrong with you.

Here are some brief descriptions of some of the 10 most important lab tests*, why they are important and there “normal” lab values and there “optimal*” lab values.

1. Chemistry Panel and Complete Blood Count

The Chemistry Panel and Complete Blood Count (CBC). This panel will give you and your physician a quick snapshot of your overall health. This test provides a broad range of diagnostic information to assess your vascular, liver, kidney, and blood cell status.

Current Laboratory Reference Range Optimal Range


65-99 mg/dL 70-85 mg/dL


100-199 mg/dL 180-200 mg/dL


0-149 mg/dL Under 100 mg/dL

2. Fibrinogen

Fibrinogen is an important contributor to blood clotting and fibrinogen levels increase in response to tissue inflammation. Since the development of atherosclerosis and heart disease are essentially inflammatory processes, increased fibrinogen levels can help predict the risk of heart disease and stroke.

Current Laboratory Reference Range Optimal Range

193-423 mg/dL 200-300 mg/dL

3. Hemoglobin A1C

This is one of the best ways to assess your glucose status. This test measures a person's blood sugar control over the last two to three months.

Current Laboratory Reference Range Optimal Range

4.5-5.7% <4.5%


Dehydroepiandrosterone (DHEA), is a hormone produced by the adrenal glands. DHEA is a precursor to the sex hormones. Blood levels of DHEA peak in when you are in your twenties and then decline dramatically with age.

Standard Reference Range in Men Optimal Range in Men

280-640 g/dL 400-500 g/dL

Standard Reference Range in Women Optimal Range in Women

65-380 g/dL 350-430 g/dL


5. Prostate-Specific Antigen (PSA) (Men Only)

High levels of PSA may suggest an enlarged prostate, prostate inflammation, or prostate cancer.

Current Laboratory Reference Range Optimal Range

0-4 ng/mL 0-2.6 ng/mL

6. Homocysteine

High homocysteine levels have been associated with an increased risk for coronary artery disease, increased risk of heart attack, bone fracture, and poor cognitive function.

Current Laboratory Reference Range Optimal Range

MALE 4.3-15.3 mol/L MALE < 7.2 mol/L

FEMALE 3.3-11.6 mol/L FEMALE < 7.2 mol/L

7. C-Reactive Protein

Inflammation within the body can lead to a wide variety conditions such as such as coronary heart disease, diabetes, macular degeneration, and cognitive decline. C-Reactive Protein can measure your body's level of inflammation.

Current Laboratory Reference Range Optimal Range

MALE 0-3 mg/L MALE <0.55 mg/L

FEMALE 0-3 mg/L FEMALE <1.5 mg/L

8. Thyroid Stimulating Hormone (TSH)

When blood levels fall below normal, this indicates an increased thyroid activity and when values are above normal this suggests low thyroid activity.

Current Laboratory Reference Range Optimal Range

0.35-5.50 mU/L 0.35-2.1 mU/L

9. Testosterone (Free)

Both men and women can be dramatically affected by the decline in testosterone levels that occurs with aging.

Current Laboratory Reference Range for Men Optimal Range for Men

6.6-26.5 pg/mL 15-26.5 pg/mL

Current Laboratory Reference Range for Women Optimal Range for Women

0-2.2 pg/mL 1.4-2.2 pg/mL

10. Estradiol

Estradiol is the primary circulating form of estrogen in men and women, and is an indicator of hypothalamic and pituitary function.

Current Laboratory Reference Range for Men Optimal Range for Men

Current Laboratory Reference Range for Women Optimal Range for Women

0-528 pg/mL 352-528 pg/mL

Yearly blood testing can be a valuable tool in maintaining your health and identifying hidden risk factors before they manifest into more serious conditions or diseases.

Hopefully you can use this as a guide and allow you and your physician to implement strategies to improve your well-being and the quality of your life.

*Optimal values were obtained from Life Extension Foundation

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