Tag: hormone

Sex hormone-binding globulin (SHBG) is an important protein involved in the regulation of our sex hormones and in turn our ability to conceive. So what is a good, or ‘normal’ range for our SHBG levels? And how do we know when ours might be too high or too low? We’ve broken down all you need to know about SHBG levels, including what they mean, why they matter and what to do if you suspect yours might be out of range. Quick facts: What is SHBG? SHBG is an important protein that regulates the amount of testosterone and oestrogen available in the body by ‘binding’ to these hormones—which makes them inactive. This is because to bring about an effect in the body, hormones need to be unbound or free so they can enter cells and bring about their effect. The vast majority of testosterone and oestrogen in our bodies is bound to SHBG and other proteins. SHBG also controls the balance between testosterone and oestrogen, which is also important for the healthy functioning of our menstrual cycles. Why do SHBG levels matter? Because SHBG levels regulate the amount of testosterone and oestrogen available to be used by the body, if our SHBG levels are too high or low, this will have a knock on effect on our levels of both of these sex hormones.  If our SHBG levels are higher, we’ll have less free testosterone or oestrogen available. If our SHBG levels are lower, we’ll have more testosterone and oestrogen available.  Both of these sex hormones have important roles in the regulation of the menstrual cycle, ovulation, libido, energy levels and our mental health. Low SHBG When our SHBG levels are low, our levels of free unbound testosterone and oestrogen can become high. Let’s take a look at some of the symptoms, causes and what can be done to help. Symptoms of low SHBG These symptoms can often mirror those of excess testosterone including: Or excess oestrogen: Causes of low SHBG There is no single cause for abnormal SHBG levels, although increases in insulin, prolactin and androgens have been found to block SHBG production which could be a factor for those with low SHBG levels.  Low SHBG can also be caused by a number of lifestyle factors, certain medical conditions and genetics. Here are several conditions, as well as other factors, that low SHBG has been found to be associated with: How to raise low SHBG If you have low SHBG there are a number of lifestyle changes that may help to increase your levels. These include: High SHBG  On the flip side, when our SHBG levels are too high, our unbound testosterone and oestrogen can become abnormally low. Here are some symptoms, causes and what can be done to reduce high levels of SHBG. Symptoms of high SHBG These symptoms can often mirror those of low testosterone including:  Or low oestrogen: Causes of high SHBG Again, there is no single cause for abnormal SHBG levels, although as we mentioned previously, increases in oestrogen and thyroxine (T4) have been found to increase SHBG production, which could be a factor for those with high SHBG levels. There are also a number of conditions associated with high SHBG which include: How to lower SHBG Dietary changes are the most effective way to lower SHBG levels. Decreasing alcohol consumption, gaining weight if you have a low BHM and following a high-fat, low fibre diet may help decrease levels of SHBG. One study involving 48 premenopausal women showed that maintaining a high-fat, low diet decreased SHBG. However, more clinical studies are required to confirm this association. If the levels are elevated due to contraception use, this will usually return to normal levels once you stop using that contraception. Other possible causes such as type 1 diabetes and an overactive thyroid will need further investigation and will require medication specific to these conditions. SHBG tests Ultimately, if you suspect you may have abnormal levels of SHBG, the only way to definitively get a diagnosis is via a blood test. Because symptoms of abnormal SHBG levels can mimic those of high or low oestrogen and testosterone, your SHBG levels should be tested in tandem these hormones. You can test all of these hormones and more, with a Hertility at-home Hormone and Fertility Test. Resources:

Hertility partners with Pearl & Dean for the launch of #MeToo film, ‘She Said’, to rally women in the UK for the next women’s rights movement, the Reproductive Revolution.   Women’s health company Hertility’s award-winning film, ‘Ooh Someone’s Hormonal,’ spotlighted the lack of research on women’s bodies and called out society for using women’s hormones against them. Now, they’re teaming up with Pearl & Dean, the UK’s best-known cinema advertising contractor, to take the “Mother of all movements” to the next level in a bid to urge millions of women across the UK to get to know their bodies. For 5 weeks from November 25th, ‘Ooh Someone’s Hormonal,’ created by female-founded creative content agency Be The Fox, will be shown before every screening of ‘She Said’ in Pearl and Dean cinemas nationwide, the film starring Carey Mulligan and directed by Maria Schrader telling the story of the #MeToo movement.  Founded by women and powered by an (all female) research team, Hertility is setting a new standard of scientific rigour in female health by empowering women with information about exactly what’s going on under their skin using at-home diagnostic testing, telemedicine and treatment. By joining forces with cinema ad sales firm Pearl & Dean, the partnership aims to fuse science and art in the fight for equality. ‘The #MeToo movement was such a huge step forwards in women’s rights but from a reproductive perspective, women are still second-class citizens. We want to inspire women watching ‘She Said’ to join us in our fight in the next revolution – the Reproductive Revolution – by getting to know their bodies and taking control of their life choices. For themselves and for all women worldwide.’ – Dr Helen O’Neill, CEO and Founder of Hertility Carey Mulligan, has spoken openly about the lack of support for women in the film industry but as a middle finger to the male-dominated Harvey Weinstein era, ‘Ooh Someone’s Hormonal’, produced by female-led production company, Be The Fox, shows Hollywood how it’s done. Echoing the equality seen in the production of ‘She Said’, the female-powered cast and crew of ‘Ooh Someone’s Hormonal’ worked to the soundtrack of female artist Rebecca Taylor of Self-Esteem, complete with childcare on set, changing the outdated landscape and showing what’s possible when women, fully supported, come together. Diana Ellis Hill, Co-Founder, Be The Fox comments: “Empowering women and having true representation is an important cause that’s close to our hearts. We gathered an 80% female team to make the film from DOP and Director to Editor and Colourist as we wanted it to be real and authentic. We are immensely proud of what’s been produced and to see our film on screens at cinemas nationwide ahead of She Said.” Kathryn Jacob OBE, CEO at Pearl & Dean, said: “Cinema is a unique advertising medium in the sense that it is both a personal and shared experience. Cinema has the power to truly reach an individual, and to speak to them one on one, as well as spark a conversation. We are honoured to be working with Hertility to launch its first ever cinema campaign and to be a part of helping to better articulate an important issue that is often hidden or ignored by wider society.” Watch the cinema advert ‘Ooh Someone’s Hormonal’ More information on ‘She Said’

AMH (anti-Müllerian hormone) is a hormone made by the small, developing follicles in your ovaries. Measured with a simple blood test, and is a marker of your ovarian reserve or broadly, how many eggs you have left. It reflects egg quantity, not quality, and it’s one important piece of your wider fertility picture, not the whole story. If you’ve come across it while looking into your fertility, egg freezing, or “checking your egg count,” you’re in the right place. Here’s what AMH actually is, what your result can and can’t tell you. Quick facts: What is AMH? Anti-Müllerian hormone (AMH) is made by cells surrounding the small, developing follicles in your ovaries. Each of these follicles contains an immature egg. Because the number of these follicles is related to the size of your remaining egg pool, the amount of AMH in your blood can provide an indication of your ovarian reserve. Think of AMH as an indirect marker rather than an egg counter. It cannot tell you exactly how many eggs are left in your ovaries, but it can help show whether your ovarian reserve appears higher, lower or around what would be expected for your age. You’re born with all the eggs you’ll ever have, as we age, both our egg quality and quantity declines. As the pool shrinks, so does your AMH, which is what makes it such a useful window into where your reserve sits for your age. What is a normal AMH level for my age? There is no single normal AMH level that applies at every age. AMH naturally declines as you get older. A level that might be considered relatively low for someone in their 20s could be entirely expected for someone in their early 40s. That means the most useful question is not if you levels are good or bad, but more about how your levels compare with what is expected for someone your age? Broadly, AMH is higher in your twenties and declines through your thirties, with a steeper drop from the mid-thirties onwards, though there’s wide natural variation, and some people have a lower reserve earlier than expected. AMH results are also assay-specific. Different labs use different testing platforms, and because there’s no single international standard for calibrating AMH, a number from one lab can’t be directly compared to a number from another. This is why a result is only meaningful when it’s read against the reference range of the exact lab that ran it. At Hertility, AMH is interpreted using age-stratified reference ranges, so your result is compared with the expected range for people of a similar age rather than against one universal cut-off. Your result should also be interpreted alongside factors such as your cycle history, symptoms, hormonal contraception, medical history and fertility goals. How does AMH change with age? AMH is generally highest earlier in reproductive life and decreases as the ovarian follicle pool declines with age. There is, however, a lot of variation between individuals. Two people of exactly the same age can have quite different AMH levels without either necessarily having a reproductive health problem. This is why age matters so much when interpreting AMH. AMH also shouldn’t be confused with egg quality. Although both egg number and egg quality decline with age AMH measures the follicle pool. It does not tell us whether the eggs within that pool are chromosomally healthy. What does a low AMH level mean? A low AMH result means your ovarian reserve appears lower than expected for your age. It does not mean that you cannot get pregnant. This distinction is really important. AMH is much better at predicting how your ovaries may respond to fertility medication than it is at predicting whether you will conceive naturally. Current NICE guidance specifically says AMH should not be used to predict the chance of pregnancy through spontaneous conception. Instead, AMH or an antral follicle count (AFC) can be used to predict ovarian response when planning assisted conception. So if your AMH is low, it may mean that fewer eggs would be expected to develop during an IVF or egg-freezing stimulation cycle. Depending on your age and plans for pregnancy, it may also be useful information when thinking about fertility timelines. But it does not tell us whether the eggs you have are healthy, whether you are ovulating, whether your fallopian tubes are open, whether there are any issues affecting your uterus or, where relevant, whether sperm factors could affect conception. Does low AMH mean I can’t get pregnant? Many people with low AMH conceive naturally and without difficulty, particularly when they are younger and their egg quality is high. What low AMH does mean is: It tells you that your egg quantity is lower than average for your age. If your AMH is very low, particularly if you are under 40 and also have irregular or absent periods or symptoms associated with early menopause, your doctor may want to investigate further for conditions such as premature or primary ovarian insufficiency (POI). AMH alone, however, does not diagnose POI. Does high AMH mean I am fertile and won’t have problems conceiving? A high AMH level usually means there are more small follicles in the ovaries than expected for your age. It does not automatically mean you are more fertile. This is another common misconception about AMH. More follicles may mean a larger ovarian reserve, but natural fertility depends on much more than egg quantity. AMH cannot tell you about egg quality, whether you ovulate regularly, the health of your fallopian tubes or uterus, or sperm quality. Higher AMH is also commonly seen in people with PMOS, formerly known as PCOS, because the ovaries often contain a greater number of small follicles. A high AMH result therefore needs context rather than being interpreted as simply “good”. Can AMH diagnose PMOS or PCOS? AMH can contribute to a PMOS/PCOS assessment in adults, but it cannot diagnose PMOS on its own. Under current international guidance, AMH […]

Testosterone is an important androgen hormone in people of all sexes. In this article, we’ll cover exactly what it does in the body, what the symptoms and causes of high or low testosterone are and how you can ensure your levels are balanced and healthy.  Quick facts: What is testosterone? Testosterone is an important hormone for regulating sex drive (libido), bone and muscle mass and fat distribution. It’s part of a group of hormones called androgens.  There are a lot of misconceptions about testosterone being just a “male” hormone. Whilst testosterone plays an important role in the development of the male sex organs and male secondary sex characteristics, people of all sexes have testosterone.  Everyone produces and requires a certain amount of androgen hormones for reproductive development. The difference is just how much testosterone we have based on our sex-at-birth. How is testosterone made? In women and people assigned female-at-birth, testosterone is produced by the ovaries and adrenal glands. It’s then converted to hormone–oestrogen. Testosterone production is age-dependent and it gradually declines with age. Most of the testosterone in the body is inactive. It remains bound to a protein called, sex hormone-binding globulin (SHBG). The small amount of testosterone that’s unbound and therefore active, is called freely circulating testosterone (free T).  Free T can enter cells to bring about its effects. Our free T levels are affected by the levels of SHBG. Low levels of SHBG result in higher free testosterone, whereas high levels of SHBG result in lower free testosterone. What does testosterone do in the body? Some of the functions of testosterone are: What are the symptoms of high testosterone? Excess levels of testosterone in the body is called hyperandrogenism. This can bring about symptoms like:  Some studies suggest that high testosterone levels may increase the risk of developing high cholesterol, heart disease and type 2 diabetes. What causes high testosterone levels? The most common causes of high testosterone levels are underlying health conditions. It can also be caused by certain medications and lifestyle factors. Let’s look at the main ones… PMOS (formerly PCOS) Polyendocrine Metabolic Ovary Syndrome (PMOS, formerly known as PCOS) is a hormonal and metabolic condition affecting 1 in 10. The exact cause is still being researched, however, the proposed causes include an excess of androgens and insulin, genetic and environmental factors. If you suspect you might have PMOS, our at-home tests can give you a better insight into your hormones.  Congenital andreal hyperplasia Congenital adrenal hyperplasia (CAH) is an inherited condition that affects the adrenal glands. These are small glands located on top of the kidney. They produce hormones like cortisol (stress hormone), dehydroepiandrosterone (DHEA) and testosterone. People with CAH are unable to produce an enzyme necessary to regulate the production of these hormones, which can result in an overproduction of testosterone. It’s been found to be more common in some ethnic groups such as people of Hispanic, Mediterranean, Yugoslavian and Ashkenazi Jewish descent. Cushing’s syndrome is another hormonal condition impacting the adrenal glands. It results in excessive cortisol and androgen production. Medications Testosterone levels can rise due to certain medications, such as: Alcohol Excessive alcohol consumption may increase levels of testosterone in premenopausal women, however, research is conflicting.  How to lower my testosterone levels? Treatment for high testosterone depends on the cause, but generally, it is a combination of lifestyle changes and medications. Achieving a healthy weight by including a healthy balanced diet and exercise routine may help with the symptoms of a hormonal balance.  Medications used to treat high testosterone, and associated symptoms include: What are the symptoms of low testosterone? If you’re experiencing low testosterone, you may experience some of the following symptoms:  Low testosterone over a long period may also contribute to long-term health conditions such as heart disease, memory issues and loss of bone density. Often, the symptoms of low testosterone in women are undiagnosed or misdiagnosed. Some of the conditions that low testosterone may be mistaken for include stress, depression and the side effects of menopausal changes in women. What could cause low testosterone levels? The most common causes of low testosterone levels are often age, underlying conditions and problems with certain glands. Age Testosterone levels naturally decrease as we age. As it’s produced in the ovaries, the natural decrease in ovarian function with age means that some may experience low testosterone levels as they transition from the perimenopausal phase into menopause.  Underlying health conditions Premature ovarian insufficiency (POI) can increase your risk of low testosterone. Additionally, surgery, such as the removal of the ovaries, can cause lowered testosterone levels.  Problems with the hypothalamus or pituitary gland Underlying health conditions impacting the pituitary, hypothalamus, or adrenal glands can also cause lowered testosterone levels. This is because these parts of the brain are responsible for the secretion of hormones which control the proper functioning of the ovaries.  A disruption in the pituitary gland can also impact the adrenal gland. Addison’s disease or adrenal insufficiency is a hormonal condition that occurs due to underactive adrenal glands and can cause a low level of its hormones. What can I do to increase my testosterone levels? Low testosterone levels effects and treatments in women are still being researched and treatment is usually recommended only if symptoms are significantly impacting health and quality of life.  Testosterone replacement therapy is a form of hormone replacement therapy (HRT) based on the replacement of testosterone. It may be prescribed orally, as injections, gels or skin patches. DHEA is a precursor to testosterone, and it is believed that taking DHEA supplements could increase the amount of testosterone. It is always recommended to speak with a doctor before starting any medication or supplements. How to test testosterone levels? If you’re experiencing any of the symptoms mentioned above, our Advanced At-Home Hormone and Fertility Test can determine your testosterone levels. Hormone testing is the only way to know what your testosterone levels are for definite.  Our Doctors can recommend a care plan for you, based on your symptoms, hormone […]