Testosterone levels peak by early adulthood and drop as you age—about 1% to 2% a year beginning in the 40s. As men reach their 50s and beyond, this may lead to signs and symptoms, such as impotence or changes in sexual desire, depression or anxiety, reduced muscle mass, less energy, weight gain, anemia, and hot flashes. While falling testosterone levels are a normal part of aging, certain conditions can hasten the decline. These include:

Testosterone boosters are formulated for men in most cases, though there are a few brands that are appropriate for women. These are generally for men who want to improve their lean muscle mass, stamina, and energy levels. If you have low testosterone levels, these are great to ward off symptoms like low energy, excessive body fat, and a low sex drive. Some athletes might benefit from these boosters. You should always check with your doctor before adding these supplements or any other supplements to your regimen, particularly if you have chronic health conditions or if you are already taking medications or supplements.


The most commonly used testosterone preparation in the United States — and the one I start almost everyone off with — is a topical gel. There are two brands: AndroGel and Testim. The gel comes in miniature tubes or in a special dispenser, and you rub it on your shoulders or upper arms once a day. Based on my experience, it tends to be absorbed to good levels in about 80% to 85% of men, but that leaves a substantial number who don’t absorb enough for it to have a positive effect. [For specifics on various formulations, see table below.]
This has become a common practice despite an Institute of Medicine (IOM) report issued in 2003, indicating insufficient evidence of any benefit derived from testosterone hormone therapy to address expected symptoms of male aging.4  These studies, and 2 others (to be presented in a separate EW research brief) come on the heels of research on the efficacy of prescribing testosterone5 that appeared in the NEJM last year.
Testosterone fluctuates according to age and life circumstance, often plummeting at the onset of parenthood, and spiking (for some) during moments of triumph. Romantic relationships, too, can impact a person’s testosterone production; though the reasons are still not fully understood, entering a relationship tends to increase women’s testosterone levels, while decreasing men’s. Since males produce significantly more testosterone than females—about 20 times more each day—females can be more sensitive to these fluctuations. High levels of testosterone, particularly in men, have been correlated with a greater likelihood of getting divorced or engaging in extramarital affairs, though a causal link has not been established.
Testosterone is only one of many factors that influence aggression and the effects of previous experience and environmental stimuli have been found to correlate more strongly. A few studies indicate that the testosterone derivative estradiol (one form of estrogen) might play an important role in male aggression.[66][71][72][73] Studies have also found that testosterone facilitates aggression by modulating vasopressin receptors in the hypothalamus.[74]
If you are serious about losing weight, you have got to strictly limit the amount of processed sugar in your diet, as evidence is mounting that excess sugar, and fructose in particular, is the primary driving factor in the obesity epidemic. So cutting soda from your diet is essential, as is limiting fructose found in processed foods, fruit juice, excessive fruit and so-called "healthy" sweeteners like agave.
Cross-sectional studies have found a positive association between serum testosterone and some measures of cognitive ability in men (Barrett-Connor, Goodman-Gruen et al 1999; Yaffe et al 2002). Longitudinal studies have found that free testosterone levels correlate positively with future cognitive abilities and reduced rate of cognitive decline (Moffat et al 2002) and that, compared with controls, testosterone levels are reduced in men with Alzheimer’s disease at least 10 years prior to diagnosis (Moffat et al 2004). Studies of the effects of induced androgen deficiency in patients with prostate cancer have shown that profoundly lowering testosterone leads to worsening cognitive functions (Almeida et al 2004; Salminen et al 2004) and increased levels of serum amyloid (Gandy et al 2001; Almeida et al 2004), which is central to the pathogenesis of Alzheimer’s disease (Parihar and Hemnani 2004). Furthermore, testosterone reduces amyloid-induced hippocampal neurotoxity in vitro (Pike 2001) as well as exhibiting other neuroprotective effects (Pouliot et al 1996). The epidemiological and experimental data propose a potential role of testosterone in protecting cognitive function and preventing Alzheimer’s disease.
Hello – Has anybody here had their hair fall out after significantly increasing their T level? In 90 days of Clomiphene Citrate use my Total Testosterone went from 290 to 1100. and my Free T went from 50 to 202. Yes, it went way up! CC works. I have no idea why anybody would bother with gels and shots without giving this a chance. It costs almost nothing. so cheap.

There are several supplements on the market claiming to be natural testosterone boosters. I get these sorts of things in the mail all time. The companies that produce these products claim that the herbs (typically stinging nettle and tribulus) in their pills increase free testosterone by reducing SHBG. They also throw in some B vitamins for “increased energy and vitality.”

These berries are known to improve your overall stamina and mood. But that’s not all, they also keep temperatures in the scrotum at the optimum level. The scrotum contains the testes which produce sperm. Higher temperatures tend to hamper the sperm production and decrease the volume that is released in a man’s ejaculate. They also promote sperm production by improving blood circulation and protecting against free radical damage.
This doesn’t mean Super Test is perfect — we take a closer look at some of its ingredients below — but it beats out the competition. Every other supplement we looked at either didn’t have all four ingredients, overdosed us on vitamins or minerals (a good way to develop kidney and liver problems), contained ingredients that would harm us, or some combination thereof.

I’m a 70 year old male. Here’s my brief story, I was exhausted all the time after an encounter with H-Py-Lori. After may tests it was found out that my T-count was at about 250. I was put on a testosterone cream replacement therapy. Before I knew it, at about month I was at 1500 count. This was at 4 cream applications a day. The doctor took me down to twice/two applications a day, now I was at 600. I felt great at both levels.
If testosterone deficiency occurs during fetal development, then male characteristics may not completely develop. If testosterone deficiency occurs during puberty, a boy’s growth may slow and no growth spurt will be seen. The child may have reduced development of pubic hair, growth of the penis and testes, and deepening of the voice. Around the time of puberty, boys with too little testosterone may also have less than normal strength and endurance, and their arms and legs may continue to grow out of proportion with the rest of their body.
Xenoestrogen is a chemical that imitates estrogen in the human body. When men are exposed to too much of this estrogen-imitating chemical, T levels drop significantly. The problem is xenoestrogen is freaking everywhere — plastics, shampoos, gasoline, cows, toothpaste. You name it and chances are there are xenoestrogen in it. The ubiquitous nature of this chemical in our modern world is one reason some endocrinologists believe that testosterone levels are lower in men today than in decades past. It’s also a reason doctors say the number of boys born with hypospadias — a birth defect in which the opening of the urethra is on the underside of the penis and not at the tip — has doubled.  Note to expecting parents: make sure mom stays away from xenoestrogens during the pregnancy.
The hormone also plays a role in sex drive, sperm production, fat distribution, red cell production, and maintenance of muscle strength and mass, according to the Mayo Clinic. For these reasons, testosterone is associated with overall health and well-being in men. One 2008 study published in the journal Frontiers of Hormone Research even linked testosterone to the prevention of osteoporosis in men.
We also have epidemiologic studies, like the Physicians’ Health Study, the Baltimore Longitudinal Study of Aging, and the Massachusetts Male Aging Study, that include tens of thousands of men who are followed for 5, 10, 15, or even 20 years. At the end of the study period, the researchers see who developed prostate cancer and who didn’t. They can then look at blood samples taken at the start of the study to see if, for example, the group that got prostate cancer had a higher level of testosterone over all. About 500,000 men have been entered in some 20 trials of this type around the world. Not one of those studies has shown a definitive correlation between prostate cancer and total testosterone. Three or four have shown weak associations, but none of those have been confirmed in subsequent studies.
If you have low testosterone and are prescribed testosterone therapy by your doctor, it does not increase your risk for getting prostate cancer. However, in some patients with existing prostate cancer, adding testosterone hormone therapy can make the cancer grow faster. Men with low testosterone levels are actually more likely to get prostate cancer than men with normal prostate levels. You need to discuss these details with your physician and make the best decision for you.
I see this is an older thread, but still very appropriate. After feeling lethargic, gaining weight, and generally having a declining sexual appetite I took some advice from a friend and got the Test check done. Turns out I was around 189, and it explained a lot. Now, I am a bigger guy, and I do hit the gym regularly, and I do push weights a lot. Big arms and chest, kinda flabby gut. Doc recommended Andro Gel. Glad I had insurance, because it is EXPENSIVE!!!!! Noticed after a week of two pumps that energy was coming back, and I could concentrate better at work. A little bit of face acne, some around shoulders, and a little on the chest. I also noticed a little acne on the contact areas on my arms where I applied it. Nothing like a teenager, but I noticed. It did help in the gym a little bit, as I would put on muscle a little faster, and kept it a bit longer. I also noticed some extra water weight gain around my gut.

Epidemiological evidence supports a link between testosterone and glucose metabolism. Studies in non-diabetic men have found an inverse correlation of total or free testosterone with glucose and insulin levels (Simon et al 1992; Haffner et al 1994) and studies show lower testosterone levels in patients with the metabolic syndrome (Laaksonen et al 2003; Muller et al 2005; Kupelian et al 2006) or diabetes (Barrett-Connor 1992; Andersson et al 1994; Rhoden et al 2005). A study of patients with type 2 diabetes using measurement of serum free testosterone by the gold standard method of equilibrium dialysis, found a 33% prevalence of biochemical hypogonadism (Dhindsa et al 2004). The Barnsley study demonstrated a high prevalence of clinical and biochemical hypogonadism with 19% having total testosterone levels below 8 nmol/l and a further 25% between 8–12 nmol/l (Kapoor, Aldred et al 2007). There are also a number longitudinal studies linking low serum testosterone levels to the future development of the metabolic syndrome (Laaksonen et al 2004) or type 2 diabetes (Haffner et al 1996; Tibblin et al 1996; Stellato et al 2000; Oh et al 2002; Laaksonen et al 2004), indicating a possible role of hypogonadism in the pathogenesis of type 2 diabetes in men. Alternatively, it has been postulated that obesity may be the common link between low testosterone levels and insulin resistance, diabetes and cardiovascular disease (Phillips et al 2003; Kapoor et al 2005). With regard to this hypothesis, study findings vary as to whether the association of testosterone with diabetes occurs independently of obesity (Haffner et al 1996; Laaksonen et al 2003; Rhoden et al 2005).


One study looking at alcohol consumption found that increasing alcohol consumption led to a higher level of free & total testosterone compared to a non-drinking control group (20). Drinking did however lower SHBG testosterone levels, though this type of testosterone is bound to a protein meaning our bodies cannot use it to build muscle or increase our mood.
The medical conditions that cause excess testosterone are rare, argues Drincic. "Many people mistake the symptoms of anabolic steroid abuse with symptoms of high testosterone,” he says. Anabolic steroids, which are sometimes abused by athletes and body builders, are synthetic versions of the male hormone testosterone. They can cause behavior and mood changes that include rage, paranoia, irritability, and poor judgment.

According to studies by Srivastava [15] and Thomson et al. [21] ginger can be used as natural antithrombotic agent. Ginger has also been recorded as useful remedy in preventing post-operative nausea and vomiting in humans [13] as well as preventing morning sickness during pregnancy [16]. At high doses (500 mg/kg) aqueous extract of ginger exhibits cholesterol-lowering effect [21].

Made many mistakes growing up. Late highschool, small group of guys tried Testosterone and obviously it worked great on all levels especially on the football field etc. College years we did it again and again but not anywhere near the levels of body builders we knew and saw at the gym. When it became harder to find, then….. poof it became “legal” in the form of Pro-hormones. Great right? Not so. It worked but it also worked on everything else in a negative way. Mainly liver toxicity that I noticed and just the general idea of not really knowing what was in it. When I was 38 I had a bad event with diverticulitis. I was hospitalized for 4 days and it was horrible. This is in an infection in a diverticula that forms in your intestines. It was so bad and fast that it spread with a rapid onset of epididymitis ( infection on the epididymis of your testical). After the hospital I went see my gastro who was a board member of a large anti aging group of doctors. We did bloodwork and My testosterone levels were lower than a woman! Like 110. He also explained to me that I had probably never fully recovered normal test levels from my last “get in shape” run with pro hormones 2 years before and it probably played a part in the weakening of my intestinal wall and immune system and after discussion I realized that I had exhibited all of the text book effects of low T to the letter. After spilling my guts to my doctor we decided upon the gel. It worked great but having kids around I was worried about it affecting them so we switched to in ejections taken every 2 weeks of cypionate 200mg and my wife helps me with that at home and I never stray from the regime . My levels are around 700 to 750 and basically PSA that is non existent. I am now 41 and feel great , go to Doctor twice a year for bloodwork and all is well. My doctor also tells me that in his opinion our environmental factors play a huge role in this, meaning hormones in meats, milks, public water etc. and because of that together with “Poor decision making (me in highschool, college etc) America is in the midst of an epidemic that is being under advertised and overlooked. I constantly read up on the latest info I can find and I liked reading this and your posts. Sometimes I feel guilty because I get comments on how I look and my energy levels and I wonder is this too good to be true? But if I am following a strict regiment and bloodwork reports good things…. Do I need to worry about anything else??? This is my story and I have never shared it with ANYONE other than my wife. Big move for me!! Last point……. This is a generalization but…….all women take hormones. It’s is universally accepted and part of a woman’s life without a doubt. Why is it Taboo to publicly discuss men and hormones? I guarantee if you are a man 35 and above and you did dumb things like me and or exhibit symptoms of low T, do yourself a huge favor and go see a doctor and get blood work done. More than likely you have it! I still hide all of this and I don’t want to shout it out because I feel embarrassed. WHY? Enough already!!!!
MuscleTech Pro Series Alpha Test claims you’ll be able to see increases in free testosterone levels in as few as seven days. Its formula is supported by potent ingredients such as Fenugreek, Shilajit, and Boron Citrate. The formulation can also help increase lean muscle mass, strength, as well as overall performance and maintains a peak testosterone-to-cortisol ratio.
I thought your article was informative if researching effects of testosterone on cardiovascular and urological findings. However, it failed to key in on the psychological effects which cause noted behavioral changes. My husband was diagnosed with mildly low testosterone level and a fatty liver. Upon convincing his NP to put him on the topical gel as a first course of treatment he has stated he feels great, no longer foggy, and energetic like never before. Please understand, he was not having any sexual dysfunction but instead decreased energy and increased fatigue. What I also noticed is that he is now acting more dominant and agressive in his behavior. He speaks with the intent that nothing he says matters to him regardless of bluntness or disrespect. He has requested a divorce after 18 years of marriage without any prior indication that this was his intentions blindsiding our entire family and friend network. He recently got a job promotion since being on testosterone therapy and has a grandiose personal about him. He has lost 22 pounds and has decreased communications and contact with loved ones. He is scheduled to return to practitioner for a refill on his gel prescription and we, his family, are hoping that he may be taken off this medication which has drastically changed the man I have known for nearly 20 years. Unfortunately because he is a pilot and travels frequently we can only hope that he has not allowed his mental alertness spill over into his physical needs and allowed for infidelity to occur as he has changed all personal passwords, eliminated me accesss to flight benefits and checking account. We no longer get his schedule and therefore only await his sporadic call/texts to let us know if his whereabouts. He has developed a despiteful attitude towards me in a matter of 3 weeks which weeks. He has been on this medication for almost one month now. Prior to the medication, all was well and happy. This medication has completely changed our lives in a negative way. Perhaps practitioner need to consider the behavioral outcomes as well especially in men in their 40’s who may also be going through a mid life crisis. Take it from my firsthand experience that it is not been considered thoroughly in his case.
^ Butenandt A, Hanisch G (1935). "Umwandlung des Dehydroandrosterons in Androstendiol und Testosterone; ein Weg zur Darstellung des Testosterons aus Cholestrin" [About Testosterone. Conversion of Dehydro-androsterons into androstendiol and testosterone; a way for the structure assignment of testosterone from cholesterol]. Hoppe-Seyler's Z Physiol Chem (in German). 237 (2): 89–97. doi:10.1515/bchm2.1935.237.1-3.89.
The prevalence of biochemical testosterone deficiency increases with age. This is partly due to decreasing testosterone levels associated with illness or debility but there is also convincing epidemiological data to show that serum free and total testosterone levels also fall with normal aging (Harman et al 2001; Feldman et al 2002). The symptoms of aging include tiredness, lack of energy, reduced strength, frailty, loss of libido, decreased sexual performance depression and mood change. Men with hypogonadism experience similar symptoms. This raises the question of whether some symptoms of aging could be due to relative androgen deficiency. On the other hand, similarities between normal aging and the symptoms of mild androgen deficiency make the clinical diagnosis of hypogonadism in aging men more challenging.
For this reason I recommend doing your own research on this supplement before taking it. 5g of ground up dried powder is what was used in the studies. I recommend taking 1-2 capsules of the concentrated form from Paradise Herbs. Alternatively, the Aggressive Strength Test Booster also has MP in its formula so you may prefer to use that blend instead. 

Some anti-aging physicians also use sublingual ( taken under the tongue) forms of non-bioidentical testosterone like oxandrolone. I took oxandrolone with a physician’s guidance for about two weeks, and I got pimples and hair loss. I quit and was bummed that it didn’t generate enough impact to write a blog post about it. I have continued to recommend bioidentical testosterone since.

Pine Pollen is an androgen, meaning in theory it can raise testosterone levels – effectively making it a naturally derived source of testosterone. Read more about this on the links below. But like I said I started taking it for a few weeks and did notice a bit more ‘up and go’ so to speak, but it did only last a few weeks. I have tried cycling it but haven’t noticed the same effects as I had when I initially started with it. I’m still experimenting and will keep this page updated. Therefore I recommend doing your own research.

This study [9] also reported significantly increased glutathione levels. Glutathion has been shown to have a synergetic effect with l-citrulline as their combination further increases nitrate and nitrite levels and contributes to the sustained release of NO. While some previous studies have indicated that glutathione stimulates L-arginine turnover and increases nitric oxide synthase (NOS).
Men on long-term testosterone appear to have a higher risk of cardiovascular problems, like heart attacks, strokes, and deaths from heart disease. For example, in 2010, researchers halted the Testosterone in Older Men study when early results showed that men on hormone treatments had noticeably more heart problems. "In older men, theoretical cardiac side effects become a little more immediate," Dr. Pallais says.
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