Updated: 2019, Jul 6

What Is The Normal Testosterone Level For Men In 40s And 50s?

By - Reviewed by CHD Team
Normal Testosterone Levels
Michael Wight

Testosterone is the major male sex hormone produced in the testicles. Women too have some traces of it produced in the ovaries. The hormone is responsible for major physical changes that occur during puberty including deepening of voices, increased muscle mass and hair growth. The hormone, is however important throughout a man’s life.

When do testosterone levels increase?

Nearly every aspect of a man’s body relies on this steroid hormone! The hormone is necessary to help the body in development of proteins that play an integral part of all body functions. This hormone surprisingly starts getting produced as early as the age of 7 weeks of a baby boy. The hormone levels then begins to rise as the boy nears puberty and gets to the optimal levels in the late teenage years before it starts leveling off. Sadly the levels start declining when a man hits 30 and continue declining as age catches up.

The onsite of the decline comes with several symptoms such as low sex drive, less energy, memory loss and weight gain among others. At this instant, all a man needs is to restore the hormone levels so as all body functions are kept at the optimal levels.

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Why are testosterone levels important?

T-levels affect many body functions and behaviors as well. It is for this reason that you need to manage your testosterone levels no matter the age bracket you fall under. The following are some of the body systems and body functions affected by testosterone.

Endocrine system

This is the system that contains the glands producing this hormone. This system therefore is responsible for all men attributes such as body hairs, muscle mass, and sex drive and deep voice.

Central nervous system

This system controls the amount of testosterone released into the blood stream. When there is less release of this hormone, men’s behavior is affected including dominance and aggression. Sometimes, low T-levels leads to low self-esteem, lack of energy and loss of concentration.

Reproductive system

Testosterone is responsible for development of male genitals and production of sperms to the testicles. With low T-levels, a man is likely to develop erectile dysfunction

Hair growth

At puberty, testosterone is responsible for the transition of teenage boys into adulthood. At this stage, they start developing deep voices, hair growth on the face, legs, genitals, chest and armpits. When the hormone’s levels start declining, a man starts to lose some of the body hair.

Gain in muscle mass and bone density

Testosterone plays a critical role in development of muscle and strength. It increases neurotransmitters that boost tissue growth as well as interacting with nuclear receptors in DNA to increase muscle growth while exercising.

On the other hand, testosterone helps in increasing bone density by sending a message to the red marrow to produce more red blood cells. This explains why men with low testosterone hormone are prone to bone fractures.
Finally, testosterone aides in fat metabolism, converting the fats into muscles; decline in testosterone levels thus leads to weight gain as is evident in many men above thirties.

Cardiovascular system

This system is essential in boosting blood circulation throughout the body supplying body cells with necessary nutrients. For this reason, you men need to ensure their testosterone levels are normal all the time.

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What is the normal Testosterone level in men?

The truth is that there is so much confusion on the subject of normal testosterone levels. While one website says “A” is the normal testosterone level, another says “Y”. This is actually the case because of lack of standardization in the hormone testing regarding testosterone.

In 2010, The Centre for Disease Control in the US started a project to standardize hormone testing procedures and a lot has been achieved since then. The following details put everything into perspective concerning normal T-levels.

Total and free testosterone levels

To begin with, you need to understand that there are three types of testosterone hormone in the body; free testosterone, albuni-bound testosterone, and SHBG-bound testosterone. To determine your testosterone levels, there are two tests to be taken; total testosterone and free testosterone.

Total T is the combination of the three types T-hormones floating in your body at the time of testing. It is measured in nanograms per deciliter (ng/dl). Free testosterone is the amount of free testosterone floating in the body. This is measured in picograms per milliliter. Free T usually makes a small percentage of your total T, thus the reason why it is ignored most times when measuring your T levels.

Different labs for testing hormone levels have their own reference range for testosterone. But averagely the normal T-level is estimated to range between 280 and 1100 ng/dl according to University of Rochester Medical Center. Anything below 280 is considered low T and we have elaborated the consequences above.

Whatever said, critically looking at the figures and observing your levels, it may not feel right for you. For instance, if you are aged 30 and your T level is equal to that of an 80-year-old and diabetic granny, you will not be ok irrespective of the fact that it may be within the reference range.

T levels typically start declining by 1% per year after age of 30. While this true, it would be ideal to keep your T levels at the optimum. It won’t be fare if you are 30 and your T-level is already at 350, the same as that of an adult in his 70s. I hope you get the point. It is always good to ensure that your T levels match up with the average level for men your age.

Total and free testosterone levels

The chart below breaks down the normal ranges of testosterone by age, according to Mayo Clinic

Age T level (ng/dl)
0-5 months 75-400
Z`6 months-9 years <7-20
10-11 years <7-30
12-13 years <7-130
14 years <7-1,200
15-16 years 100-1,200
17-18 years 300-1,200
18-19 years 240-950
Average adult male 270-1,070
30+ years -1% per year

What are the benefits of optimal T?

Optimal testosterone is critical in the body. It offers a myriad of benefits including;

Low testosterone

Any levels below the minimum testosterone levels respective to age to a specific age range is considered as low T. low testosterone can be told from the symptoms it exhibits even before getting that lab test.

Signs of low testosterone

Signs of Low Testosterone
Signs of Low Testosterone

Low T is common among elderly men, but can also affect young men below the age of 30. The following are the symptoms of testosterone deficiency. If you notice these

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Author

Michael Wight

Michael Wight is a health enthusiast and blogger. He contributes to different websites in the health and fitness niche. He is a comp

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