The chemistry of Caitlyn: Video reveals how hormone therapy enables a man to become a woman


  • Video was produced by the American Chemical Society (ACS)
  • It details how levels of oestrogen and testosterone vary in men and women
  • ACS then explains how hormones are manipulated during gender transition

By Victoria Woollaston for MailOnline

Published: 11:24 GMT, 9 June 2015 | Updated: 11:53 GMT, 9 June 2015

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Caitlyn Jenner wowed the world when she tweeted an image of her new look on the cover of Vanity Fair. 

It was the result of months of successful hormone therapy and surgery as she transitioned from a man into a woman.

And now a video has revealed the chemistry behind gender transition by revealing how hormones are produced in males and females, and how altering these levels impacts the body. 

Scroll down for video 

Caitlyn Jenner wowed the world when she tweeted an image of her new look on the cover of Vanity Fair (pictured).  It was the result of hormone therapy and surgery as she transitioned from a man, and now a video has revealed the chemistry behind such gender transitions and how she inspired the video 

The video was produced by Washington-based American Chemical Society. 

Hormone therapy is commonly used for women going through the menopause, but the video concentrates on how it is used during gender reassignment. 

Regardless of gender or age, everyone produces the 'female' hormone oestrogen and the 'male' hormones testosterone.

These two hormones are the chiefly responsible for making a person look male or female.

In females, the ovaries and adrenal glands produce oestrogen - or estrogen - as well as testosterone. Testosterone in females is important for managing muscle strength and sex drive. 

Meanwhile, males produce around 10 times more testosterone than women. The hormone is produced in the testes 20 times faster than females produce the hormone.

Testosterone in men is chemically converted into oestrogen for maturing sperm and regulating sex drive. 

Hormone therapy is commonly used for women going through the menopause, but the video concentrates on how it is used during gender reassignment. In females, the ovaries and adrenal glands produce oestrogen as well as testosterone. Testosterone in females is important for managing muscle strength and sex drive

Hormone therapy is commonly used for women going through the menopause, but the video concentrates on how it is used during gender reassignment. In females, the ovaries and adrenal glands produce oestrogen as well as testosterone. Testosterone in females is important for managing muscle strength and sex drive

Meanwhile, males produce around 10 times more testosterone than women, and it originates in the testes 20 times faster than females can produce the hormone in their ovaries. Testosterone in men is chemically converted into oestrogen for maturing sperm and regulating sex drive

Meanwhile, males produce around 10 times more testosterone than women, and it originates in the testes 20 times faster than females can produce the hormone in their ovaries. Testosterone in men is chemically converted into oestrogen for maturing sperm and regulating sex drive

Hormone therapy, therefore, adjusts the levels of oestrogen and testosterone in each sex depending on which gender they are transitioning into. 

TOMATO JUICE CAN EASE MENOPAUSAL SYMPTOMS 

A glass of tomato juice a day could help ease menopausal symptoms, according to researchers from Tokyo Medical University.

They found that drinking 200ml of the juice twice a day for eight weeks had a significant effect on overall symptoms, as well as cholesterol and anxiety. In the study, 93 women were given tomato juice and had their heart rate and other markers checked.

Results in the Nutrition Journal show that at the end of the study, menopausal symptoms - including anxiety, hot flushes and irritability - had almost halved. 

'This essentially puts the patient through a second puberty, and while the new hormones can't totally reverse the effects of the first puberty, it alters the development of the secondary sex characteristics that make the person appear to look like the gender they identify with,' explained the video. 

When a male transitions to a female, they are also prescribed antiandrogens to inhibit testosterone production and its behaviour.

This significant reduction means the typical secondary sex characteristics of men begin to be removed. 

Muscle mass shrinks, fat is redistributed, breast tissue grows and body hair becomes thinner and lighter. 

Transitioning males then take oestrogen to help female characteristics develop in the form of gels, pills or injections. 

And it then takes two to three years for these physical changes to occur.

In addition to being given increased levels of oestrogen, when males transition to females they are also given antiandrogens to block testosterone and lower levels of it overall. This significant reduction means the typical secondary sex characteristics of men begin to change

In addition to being given increased levels of oestrogen, when males transition to females they are also given antiandrogens to block testosterone and lower levels of it overall. This significant reduction means the typical secondary sex characteristics of men begin to change

Transitioning males take oestrogen to help female characteristics develop in the form of gels, pills or injections, and it takes two to three years for the physical changes to occur

Transitioning males take oestrogen to help female characteristics develop in the form of gels, pills or injections, and it takes two to three years for the physical changes to occur

When females transition to males they are given testosterone, either topically using a gel, or routinely through injections. 

This lowers the voice, increases facial hair and lowers muscle mass, while decreasing the levels of oestrogen causing breasts to decrease in size, shoulder and hips to broaden and the menstrual cycle to stop. 

This takes one to two years for a born female to achieve male levels of oestrogen and testosterone. 

But the video warns that because hormones are so powerful, people should never take them without seeking the advice of a doctor first.  

When females transition to males they are given testosterone, either topically using a gel, or routinely through injections. This lowers the voice, increases facial hair and lowers muscle mass, while decreasing the levels of oestrogen causing breasts to decrease in size, shoulder and hips to broaden and the menstrual cycle to stop

When females transition to males they are given testosterone, either topically using a gel, or routinely through injections. This lowers the voice, increases facial hair and lowers muscle mass, while decreasing the levels of oestrogen causing breasts to decrease in size, shoulder and hips to broaden and the menstrual cycle to stop

 

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