EliteFitness.com Bodybuilding ForumsWe make our world significant by the courage of winstrol y dianabol pastillas questions and by the depth of our answers. Medicine How can hormones change the facial structure of a full grown person e. How can hormones change the facial structure of a full grown person e. The long bones of your body think arms, legs, etc seal off after puberty stedoids gives you your final height sidenote; estrogen is what causes the bones to seal off, which is why girls are shorter than men; they undergo puberty earlier, meaning their bones seal off earlier. However, your flat bones sttructure can steroids change your bone structure your skull don't have the caps that seal off growth, so if growth hormone or testosterone is applied to them, then they can continue to grow giving the characteristic "more masculine" appearance can steroids change your bone structure described. Interesting medical application of this idea is the presence of a growth hormone secreting tumor typically in the brain. The symptoms of such a tumor can appear completely different depending on the sterouds of the patient, even though they have the exact blne cause.
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We make our world significant by the courage of our questions and by the depth of our answers. Medicine How can hormones change the facial structure of a full grown person e.
How can hormones change the facial structure of a full grown person e. The long bones of your body think arms, legs, etc seal off after puberty which gives you your final height sidenote; estrogen is what causes the bones to seal off, which is why girls are shorter than men; they undergo puberty earlier, meaning their bones seal off earlier.
However, your flat bones mainly in your skull don't have the caps that seal off growth, so if growth hormone or testosterone is applied to them, then they can continue to grow giving the characteristic "more masculine" appearance you described.
Interesting medical application of this idea is the presence of a growth hormone secreting tumor typically in the brain. The symptoms of such a tumor can appear completely different depending on the age of the patient, even though they have the exact same cause. In a young patient, it is the cause of gigantism, this is how you get the tallest people in the world types.
In adults, it presents as coarsening of facial features and squaring of jaws, often slowly over time.
Some patients don't even notice their change in appearance until they meet with friends they haven't seen for a few years, who remark on how different the look; this can result in the patient discovering they have a brain tumor!
I hope no one takes any of this as anything close to medical advice, this is highly simplified. Just to elaborate, the effect of excess human growth hormone in adults is called acromegaly.
The link below shows some of the effects- a thickened brow, more prominent jawline and coarser features. Hands may also become more square-shaped and lose the tapering from the knuckles to the fingertips- these are called 'spade-like hands'.
The following is a series of photos of the same person as acromegaly develops. They may not have even noticed as it is such a slow process. Yes, growth hormone-secreting tumors can be resected. There are also drugs that inhibit growth hormone's release and block its receptor that can be used for this condition. Do these treatments stop the progression of the disease, or can they reverse some of the physical effects?
Soft tissue changes are reversible to a degree, but changes to the bone structure would generally require surgery. This is why trans women sometimes opt if they can for facial feminizing surgery.
This is usually shaving of bones. It's always easy to add than it is to subtract to your bones. You can look at FTM resources to see a list of permanent effects of testosterone.
The other being voice changes due to thickening of the vocal chords. Bone changes are much less reversible than changes to soft tissue. Soft tissue-based structures can become finer or more coarse in response to hormones at any point. Bones can only grow and be worn down over decades. If the jawbone has grown too large and thick, it can only be returned to its original state by shaving off the excess bone. Would I be right in saying this is why older people's heads seem to get bigger as they age?
Or is that the illusion of fat around their head? You are correct in believing this. As you age, bone is replenished at a slower rate on the inside of the cranium than it is rebuilt on the surface leading to an overall increase in cranial size over time.
Unfortunately, this also tends to lead to an overall thinning of the bone and also your hats may no longer fit. While large amounts of bone growth typically don't occur after puberty, bone is not static and is constantly changing and shifting in response to the stresses placed on it. My copy of Skeleton Keys. Wait, so if someone works out a lot from a young age could their bones develop much differently from someone who only occasionally exercises or doesn't at all?
Yes, that's one of the reasons we recommend everyone get an appropriate amount of exercise, it increases bone strength. The elderly should still do weightbearing exercise though, it's not like working out a lot as a youngster will help them as much later in life. Maintaining good bone density over time is more important. Yes, kids with cerebral palsy can have oddly shaped hips because they may not walk much, and the muscles pull on the bones oddly. Yes, I read of an island tribe who were exceptionally good rowers and used to do it natuarally from early age.
As adults they had significantly thicker arm bones than the average human. I'd have to dig through my old Scientific American magazines to find the source though Pretty sure that is an illusion.
It's also why peoples ears and noses look bigger when they get older, and the myth that they continue to grow. Noses do not continue to grow, that is a myth. Scientific studies have proved this. If there isn't an off signal for ear growth within 9 decades, chances are it doesn't exist in humans naturally.
Human life extension just got more elephant-y. How does the probability of having tall parents thus the girl exceeding the average height of woman and the fact above correlate? Are they mutually exclusive? What about short bones and other bones in the body? I'm a trans guy and I think there's a lot of misinformation in our community. Many think that your bones can't change at all. Of course you can't get taller.
And you just went over the changes in the face, but what about the hand and feet? I've heard stories of trans guys feet growing way after puberty when they start T. Also, do we know a general rate that they can grow? In cis guys, do they keep changing as they age? Not sure about people on T, but HGH can cause your hands and feet to grow. Adults with hormone-secreting pituitary tumors often notice that their gloves and shoes are getting too small.
In a healthy person not taking hormones, bone growth should stop almost completely by early to mid 20s. Yes, I forgot to mention in my post that hands and feet are also not long bones, so they can continue to grow. As for in cis guys, the change is not very noticeable or clinically relevant I believe, this fact only really comes up when you either have exogenous steroids or a tumor that secretes the steroids. In other words, the normal growth hormone that's released over your life has negligible impact on flat bone growth afaik.
If more estrogen means less growing, do girls taking hormone contraception stop growing earlier? Generally speaking, they replace the naturally produced amounts of each, tricking the body into thinking they've already produced enough of their own by detecting the pill ingredients. That means that you don't have loads of extra estrogen since your body would create less in response to the levels in the blood from pills.
If you're taking a progestin-only version, it wouldn't artificially increase your estrogen levels at all. But if you use an estrogen based BC you still have more estrogen seen over time! When the body usually wouldn't produce as much the pill is adding more hormones.
So if we could block estrogen in the body around the time of puberty, could we potentially become giants? With tons and tons of side effects.
Estrogen does a lot more than regulate bone growth. There's a reason we use growth hormone instead to help kids who are stunted grow a bit more, it has far fewer effects elsewhere in the body. Also, being a "giant" wouldn't be all that great, lots of comorbidities associated with that too.
There's a reason we evolved to be roughly this height. So do people who go through puberty at a younger age have larger heads proportionally? If estrogen causes the larger bones to seal off but not the skull bones? I don't believe so in any statistically significant way, growth hormone production declines after puberty, so in those with earlier puberty, their growth hormone levels will drop off at a similar time as their estrogen. However, that does bring up another related idea; your question hits on why those with achondroplasia, the most common cause of dwarfism think Peter Dinklage from GoT or Warwick Davis have disproportionately large heads.
Those with the disease don't actually have anything wrong with their bone genes, the problem is actually with their cartilage. Because these patients have defective cartilage, they can't lay anything down to harden into bone, which is why they're so short. However, the flat bones don't use this cartilage method to grow, rather, bones like the skull use actual bone cells to lay down bone.
Hence, their heads are actually "normal sized", but their bodies are so small and have child like proportions. So if a woman is taller than average does that mean she naturally has less estrogen in her system than other women, that puberty took longer than it should have to start for her, or a combination of the two?
Or am I entirely misunderstanding the implications of what you said there? I'm very curious about this. So there are a lot more factors than estrogen involved that have to do with genetics, so my explanation was simplified.
However, on average, the taller women generally started puberty later. I don't think actual levels of estrogen matter, you either get the surge in estrogen levels or you don't that is to say, almost everyone gets the surge of estrogen associated with puberty at some point, it just matters when.
If it interests you, I believe there's literature that shows a better diet and lack of any malnutrition causes puberty to occur later; ie your body has time to keep developing, it's not in danger of diminished resources preventing it from having children. That's good to know. I'll have to look for that literature then.
Thank you for the answer. So just a quick question about bones sealing off. I don't know of any trials to demonstrate that, when you want to boost people's growth you typically give them more growth hormone, stopping estrogen would have a lot of side effects during puberty, especially since estrogen also encourages bone density. I'm a bit late to this party, but here's a basic bit that no one seems to have covered: