The second theory is similar and is known as "evolutionary neuroandrogenic (ENA) theory of male aggression".[82][83] Testosterone and other androgens have evolved to masculinize a brain in order to be competitive even to the point of risking harm to the person and others. By doing so, individuals with masculinized brains as a result of pre-natal and adult life testosterone and androgens enhance their resource acquiring abilities in order to survive, attract and copulate with mates as much as possible.[82] The masculinization of the brain is not just mediated by testosterone levels at the adult stage, but also testosterone exposure in the womb as a fetus. Higher pre-natal testosterone indicated by a low digit ratio as well as adult testosterone levels increased risk of fouls or aggression among male players in a soccer game.[84] Studies have also found higher pre-natal testosterone or lower digit ratio to be correlated with higher aggression in males.[85][86][87][88][89]
Alterations in mood and depression are a symptom of, but not confined to, hypogonadism.1,6 Outcomes in clinical trials of the effect of testosterone treatment on mood have varied. However, there is evidence that testosterone treatment results in improvements in mood, particularly in older men with hypogonadism.7,8Similarly, although there is an established association between measures of cognitive ability and serum levels of testosterone, the benefits of testosterone treatment on cognition are less clearly established, with some studies reporting improvements in some measures of cognitive function and others failing to detect benefits.6,9-11 Although a potential role for testosterone in protecting cognitive function and preventing Alzheimer’s disease has been proposed by some researchers, confirmation from appropriately-designed clinical trials is awaited.
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Men's levels of testosterone, a hormone known to affect men's mating behaviour, changes depending on whether they are exposed to an ovulating or nonovulating woman's body odour. Men who are exposed to scents of ovulating women maintained a stable testosterone level that was higher than the testosterone level of men exposed to nonovulation cues. Testosterone levels and sexual arousal in men are heavily aware of hormone cycles in females.[46] This may be linked to the ovulatory shift hypothesis,[47] where males are adapted to respond to the ovulation cycles of females by sensing when they are most fertile and whereby females look for preferred male mates when they are the most fertile; both actions may be driven by hormones.
Testosterone improves not just your sex drive, but it also enhances exercise drive, energy for work, mental sharpness, muscle repair, and revs your metabolism to help with weight control. Although improving testosterone levels has not yet been shown to increase lifespan, having a healthy testosterone level improves quality of life for both men and women.
We scoured the database of the National Center for Biotechnology Information (part of the U.S. National Library of Science) for articles. Of the many ingredients marketed as boosting testosterone levels, we only found four backed by multiple articles based on human testing. For the best chance of boosting testosterone levels, a supplement needs to contain magnesium, fenugreek, and longjack — and some zinc wouldn’t go astray, either.
I was born with a rare genetic disorder called Klinefelter’s syndrome. My parents actually were known about my condition prior to birth. I’m 25 years old and have been on TRT since 8th grade. It’s a permanent part of life and essential to ultimate happiness, motivation, and the pursuit of bigger and better things. I currently face problems at this time in life due to the endocrinologists. It seems when I bring a problem or question to them, they don’t take charge and figure it out. There all pushed off to the side and left for no one; so now I’ve gotten rid of them and I’m in pursuit of a doctor who will improve the quality of my life. Also with my last doctor I was able to retrieve enough testosterone to perform my out ethical experiment with Testosterone. I injected myself every 5 days for a period of 3 months at the dosage of .75ml. The outcome was amazing. My mind, body, and spirit were one. The energy was phenomenal and in demand. I was able to pursue my endeavors with the energy provided, I was able to think about running and exercising and then put that thought into action. I took extensive notes in the form of a journal to create the ultimate needed dosage for myself. The only reason it ended in three months, was due to no more medicine. It had to be done. Now I’m off to find a doctor to work with me.
Women also feel the effects of testosterone imbalance. Common knowledge holds that testosterone is just for men, but that’s not true. Low testosterone in women results in a wide variety of hard to diagnose symptoms: fatigue, anxiety, sleeplessness, depression, and weight gain are some common symptoms. These effects are commonly seen after menopause, but hormone imbalances can happen at any age. Properly balancing the body’s natural testosterone and estrogen levels prevents these symptoms.
Zaima, N., Kinoshita, S., Hieda, N., Kugo, H., Narisawa, K., Yamamoto, A., ... Moriyama, T. (2016, September). Effect of dietary fish oil on mouse testosterone level and the distribution of eicosapentaenoic acid-containing phosphatidylcholine in testicular interstitium. Biochemistry and Biophysics Reports, 7, 259–265. Retrieved from https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5613343/
Elevated testosterone levels have been demonstrated to increase the growth of body muscles and contribute to better activation of the nervous system, resulting in more power and strength, a better mood, enhanced libido, and many other benefits.[3] Previous researches done on the anabolic role of testosterone and its impact on muscular strength in training-induced adaptations has provided rather conflicting findings, and a positive correlation between testosterone-mediated responses and both functional performance and body composition was found.[4,5] There are a number of naturally occurring substances that can boost testosterone levels in the body. Foods containing such substances are known as testosterone-foods; and they tend to be rich in vitamins, antioxidants, and minerals like zinc, which plays a key role in testosterone production.[2,6-8]
Travison, T. G., Vesper, H. W., Orwoll, E, Wu, F., Kaufman, J. M., Wang, Y., …Bhasin, S. (2017, April1). Harmonized reference ranges for circulating testosterone levels in men of four cohort studies in the United States and Europe. The Journal of Clinical Endocrinology & Metabolism, 102(4), 1161–1173. Retrieved from https://academic.oup.com/jcem/article/102/4/1161/2884621
In this article, testosterone-replacement therapy refers to the treatment of hypogonadism with exogenous testosterone — testosterone that is manufactured outside the body. Depending on the formulation, treatment can cause skin irritation, breast enlargement and tenderness, sleep apnea, acne, reduced sperm count, increased red blood cell count, and other side effects.
This is one of the most controversial recommendations I make, but it shouldn’t be. It’s no different than using thyroid medication. If your levels are low, and the other techniques here don’t work, use TRT. You will like your life again. If your levels are low, bioidentical testosterone will make you live longer and better, provided you use it right.
i have been on T therapy for 32 years now after being diagnosed with Klinefelters. Recently my pharmacy had been non responsive to my request to refill and they flat out refused/declined the request from my doctor which was T powder mixed with a cream base that you place on the shoulder. I asked if I could purchase it with cash and they told me that the FDA is not approving this usage anymore but did not provide an option. Completely out now for close to a week and have been working for five weeks trying to get again. Now what to do, I’m having all kinds of weird feelings including anxiety to the max, nervous, irritable, muscle cramps/pains … I guess they just don’t care that we cannot get something our bodies have adjusted too for many years. Strange thing is I think I have found a compounding pharmacy in Houston Texas that will fill this Rx. I’m not sure how one can do this and another cannot especially if they have compounding capabilities. Now I’m wondering if I can get thru this and stop taking it alltogether however I already know I’m seeing signs of being forgetful, lack of energy and foggy brain. I wonder if this will ever stop. The really bad thing is that I’m traveling for work and cannot get into my doctor’s office. This whole process is not great. I can only imagine what a person must feel taking hard drugs then not getting any all at once.

In many of the studies we found, those who saw the most improvement in health, testosterone, or muscle gain were those with existing nutrient or vitamin deficiencies. This means that some gains may be due more to dietary changes and generally restoring nutrient and vitamin levels than any one magic ingredient, but also that making sure your diet includes healthy amounts of nutrients should be your first step.


The researchers found that the dose of testosterone required to produce different effects in the body varied widely. The influence of testosterone and estradiol also differed. As the testosterone gel dose was reduced, the scientists showed, reductions in lean mass, muscle size, and leg-press strength resulted from decreases in testosterone itself. In contrast, increases in body fat were due to the related declines in estradiol. Both testosterone and estradiol levels were associated with libido and erectile function.
In my late 40’s I was on Androgel. I lost weight and gained muscle; became healthier over all, brighter outlook, more active, and a harder erection that had a mind of it’s own. Then I went on injectable testosterone. My numbers are normal but my weight is up even after eating less. As well everything else is shelter smelter. I intend to get back to Androgel. (this, of course, is my own personal study)
If you do take DAA I recommend cycling it (i.e. 5 days on, 2 off, over 4 weeks then 4 weeks off). And taking it with an aromatase inhibitor (which ensures the aspartic acid doesn’t get converted to estrogen). Especially as more studies are coming out showing the increase in testosterone is limited to a week or two before it drops back to normal levels.
I’ve had low testo in the winter for the last 10 years, with the lowest values around april (live in the north). But last year (in september) I started using vitamine D (10 000 IU) and K2 (180 mcg), combined with magnesium (200 mg malate) and zinc (25 mg malate and piccolinate) every night, and since then I no longer have low testo in the winter, and is feeling like I do in the summer and have normal testo levels. This combo may work for other people as well. And the risk for dangerous side effects is probabaly neglectable. But it takes a couple of weeks before it kicks in.
Ten healthy men aged around 24 years old spent 1 week sleeping for 8 hours per night at home, they then spent the next 11 nights in a lab. They slept for 10 hours per night for 3 nights, followed by 8 nights of restricted sleep, when they slept for only 5 hours. Doctors checked their blood every 15 to 30 minutes during the last night that they slept 10 hours, as well as on the sleep-restricted session.
Finally, there's the question of prostate cancer risk. Research over the past few decades has shown little evidence of a link between testosterone replacement therapy and prostate cancer. However, the question has not been entirely laid to rest. Eisenberg recommends that his testosterone replacement therapy patients get a PSA test once or twice a year to check for possible signs of concern.
This paper will aim to review the current evidence of clinical effects of testosterone treatment within an aging male population. As with any other clinical intervention a decision to treat patients with testosterone requires a balance of risk versus benefit. We shall try to facilitate this by examining the effects of testosterone on the various symptoms and organs involved.

I am now 65 & have had Low-T problems since I was about 60. I took topical Testosterone for a few years until insurance stopped covering it. Then I took injections at a Men's Health-Low-T Clinic. Then I was diagnosed with Prostate Cancer & was told to stop taking Testosterone. I underwent radiation treatment to cure the Prostate cancer, but since there is a theory that taking Testosterone can lead to Prostate cancer, I have chosen not to resume taking it. While I am glad to be free of the cancer, I have been feeling extremely fatigued & tired all the time to the point that doing much of anything like a little yard work would leave me exhausted for days.


Testosterone may decrease your chances of Alzheimer’s Disease. Several studies have linked low testosterone levels to an increased risk of Alzheimer’s disease.  In a 2010 study by the University of Hong Kong, researchers studied 153 Chinese men who were recruited from social centers. They were at least 55 years and older, lived in the community, and didn’t have dementia. Of those men, 47 had mild cognitive impairment — or problems with clear thinking and memory loss.
I am 45 years old and have been diagnosed with low testosterone levels. In 2014 my levels were 16.5 and in 2016 that dramatically reduced to a score of 10.4. My doctor prescribed me Testo gel which I rub on every morning and have done so for the last 6 weeks. I keep myself fit, gym twice a week and martial arts twice a week and found my energy levels were depleting and didn’t seem to recover quickly the next day. I started to feel exhausted and experienced low libido,lack of motivation and mental focus. I actually thought oh well this is what happens when you get older.
Fortunately supplementation of Vitamin D3 has been noted to significantly boost testosterone levels up to 20%.[40,41] This occurs via a reduction in sex-hormone binding globulin (SHBG) and aromatase expression, which limits the breakdown of testosterone into estrogen. It’s also worth mentioning that Vitamin D3 has been shown to raise levels of the anabolic hormone IGF-1.[42,43]
Topical testosterone, specifically gels, creams and liquids, may transfer to others. Women and children are most at risk of harmful effects from contact with them. You should take care to cover the area and wash your hands well after putting on the medication. Be careful not to let the site with the topical TT touch others because that could transfer the drug.
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.

Proprietary blends are a growing problem in the supplement industry. This is where mix many ingredients together and list it on the label as a blend. The problem with this is you have no idea how much of each of those ingredients you are getting. Complete transparency is best so the customer knows what they are getting and it also helps limit side-effects.
I am 35 and had the non sexual symptoms for awhile now( weight gain/muscle loss, extreme fatigue, lack of clarity/concentration) I got my testosterone levels checked last week and it was 35.4 ng. Not a typo, 35.4. I was told by my dr. That I needed to start TRT right away as low t can effect a lot different things in your body. I did my first injection last night (200mg/ml every 2 weeks) about 8 pm and td now 3:30 am and I’m wide awake and feel extremely motivated to go to the gym and work out. I know each person is different but should I feel like this already, or is it a placebo effect at this point?
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.
Not exactly. There are a number of drugs that may lessen sex drive, including the BPH drugs finasteride (Proscar) and dutasteride (Avodart). Those drugs can also decrease the amount of the ejaculatory fluid, no question. But a reduction in orgasm intensity usually does not go along with treatment for BPH. Erectile dysfunction does not usually go along with it either, though certainly if somebody has less sex drive or less interest, it’s more of a challenge to get a good erection.
I’m a 49yr old who had a testosterone level of below 300 . I have been on AndroGel for over one year now. The first three months my levels were running between 500 and 600.in the fourth month my level spiked to over 1200 and cut my doctor cut my dosage back to half. my levels fell back to below normal and have since remained that way even though I have been put on the normal dosage again. It seems as though my body has stopped responding to the andro gel.
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.
Despite all the wonderful benefits of testosterone boosters, it will only work as well as you are able to make it work. This means that if you’re living a sloppy lifestyle, then your testosterone booster will produce poor results. Testosterone boosters work best when you make small, healthy changes to your lifestyle and diet that will allow your T-booster to give you its full benefits.

There are many Supplements: Zinc for starters about 1/3 of Men have to low Zinc. Make shure you get a good chemical form no oxides best are chelates or citrates. Then there is Arginin and L-Citrullin two amino acids that help Blood flow basacly natural viagra. And then there are things like maca(a plant that you can get in powder form) that hightens libido but not like zinc it doesnt highten the testosteron level. My dad takes the combo of these 3 things kosts you about 30-60$ per Month. Dont be lazy do research on the stuff to make shure you get right dosages and good quality Sups

When I first started TRT, my physician prescribed a cream that you rub into your skin. The cream version of TRT is not too convenient, because if someone touches you while you have the cream on, the testosterone can rub off on him/her. This can be really bad around kids or pregnant women. If you’re sleeping next to someone, the cream can get on the sheets and transfer over that way, too. The cream can be annoying, but it works. There’s also a gel version called AndroGel; I skipped it because it doesn’t absorb as well as the cream does.
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Produced primarily by the testicles, testosterone is the hormone responsible for developing male sexual traits and maintaining muscle mass, bone density and red blood cell levels. Testosterone levels peak in adolescence and early adulthood then begin to decline with age, typically at a rate of 1 to 2 percent per year after age 30. Testosterone levels influence physical, emotional and sexual well being, with higher testosterone generally having a favorable effect on attitude and performance. Though increasing testosterone can have benefits, changes to testosterone levels can affect hormonal production elsewhere in the endocrine system, so consult a doctor prior to attempting to raise your testosterone.
Falling in love decreases men's testosterone levels while increasing women's testosterone levels. There has been speculation that these changes in testosterone result in the temporary reduction of differences in behavior between the sexes.[53] However, it is suggested that after the "honeymoon phase" ends—about four years into a relationship—this change in testosterone levels is no longer apparent.[53] Men who produce less testosterone are more likely to be in a relationship[54] or married,[55] and men who produce more testosterone are more likely to divorce;[55] however, causality cannot be determined in this correlation. Marriage or commitment could cause a decrease in testosterone levels.[56] Single men who have not had relationship experience have lower testosterone levels than single men with experience. It is suggested that these single men with prior experience are in a more competitive state than their non-experienced counterparts.[57] Married men who engage in bond-maintenance activities such as spending the day with their spouse/and or child have no different testosterone levels compared to times when they do not engage in such activities. Collectively, these results suggest that the presence of competitive activities rather than bond-maintenance activities are more relevant to changes in testosterone levels.[58]
We’ll be honest. Testosterone boosters don’t really boost. The best testosterone booster is like taking a multivitamin with extra herbs that might slightly and temporarily increase your testosterone levels. Like all supplements, finding the right testosterone booster means wading into a sea of ingredients, all promising to help. Of 133 testosterone boosters, we found only one with the right ingredients to help raise your testosterone levels: Beast Sports Nutrition - Super Test ($45.88 for 180 capsules, or $2.04 per day).
Produced primarily by the testicles, testosterone is the hormone responsible for developing male sexual traits and maintaining muscle mass, bone density and red blood cell levels. Testosterone levels peak in adolescence and early adulthood then begin to decline with age, typically at a rate of 1 to 2 percent per year after age 30. Testosterone levels influence physical, emotional and sexual well being, with higher testosterone generally having a favorable effect on attitude and performance. Though increasing testosterone can have benefits, changes to testosterone levels can affect hormonal production elsewhere in the endocrine system, so consult a doctor prior to attempting to raise your testosterone.
I was depressed, getting fat, and zero libido. My doc did a full blood work up. My Total Testosterone level was 289 ng/dl. He offered TRT but I declined because I knew, at 53, that if I went on TRT my own testosterone production would shut down and at my age I would have a pretty difficult time kick starting it up again. I researched and researched for about a month. I started on Vitamin D 10,000 iu per day ( I knew this was a safe amount because I tested at 26ng/dl and optimum level is anywhere between 40-80ng/dl. I also took 1,200 mg of magnesium, 9mg of Boron and Vitamin K Complex. Tested again 3 months later and blood work showed I was at 720.
at 54 testestrone was 135 so started TRH. Huge increase in energy and sex drive on 100mg cypriate every 2 weeks. My PSA rose from 1.13 to 1.63 in two years so Dr. ordered a biopsy. I am now almost 56. Came back with 1 out of 12 cores having adenocarcinoma and graded at 3×3.I am scheduled for a pelvic MRI in 4 weeks. DR wants me stay on testosterone for the time being and wants to add a med to block DHT (as I understand it.I got all this today so kind of confused what to do. Lifestyle-I rarely eat red meat maybe twice a month, run 10ks and half-marathons.how crazy is that?
Thanks for reaching out, looks like you’re in a difficult situation here, but don’t worry, you can turn it around. For starters I would focus on getting your stress under control, this has a direct impact on your T-levels. Then look at your diet. Try to eat healthy fats, along with good carbs, and proteins. I’d recommend cutting down on anything containing sugar – again it’s testosterone worst nightmare. If you really want to kick it up a gear, and it sounds as if you do, we recommend using testofuel.com – its’ by far the best natural testosterone booster on the market – you won’t be disappointed! Good luck my friend.

Currently available testosterone preparations in common use include intramuscular injections, subcutaneous pellets, buccal tablets, transdermal gels and patches (see Table 2). Oral testosterone is not widely used. Unmodified testosterone taken orally is largely subject to first-pass metabolism by the liver. Oral doses 100 fold greater than physiological testosterone production can be given to achieve adequate serum levels. Methyl testosterone esters have been associated with hepatotoxicity. There has been some use of testosterone undecanoate, which is an esterified derivative of testosterone that is absorbed via the lymphatic system and bypasses the liver. Unfortunately, it produces unpredictable testosterone levels and increases testosterone levels for only a short period after each oral dose (Schurmeyer et al 1983).
Fortunately supplementation of Vitamin D3 has been noted to significantly boost testosterone levels up to 20%.[40,41] This occurs via a reduction in sex-hormone binding globulin (SHBG) and aromatase expression, which limits the breakdown of testosterone into estrogen. It’s also worth mentioning that Vitamin D3 has been shown to raise levels of the anabolic hormone IGF-1.[42,43]
If a young man's low testosterone is a problem for a couple trying to get pregnant, gonadotropin injections may be an option in some cases. These are hormones that signal the body to produce more testosterone. This may increase the sperm count. Hedges also describes implantable testosterone pellets, a relatively new form of treatment in which several pellets are placed under the skin of the buttocks, where they release testosterone over the course of about three to four months. Injections and nasal gels may be other options for some men.
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