The human body has hundreds of different varieties/kinds of hormones. Hormones are the triggers which cause the human body to function.
Every cell in the human body, every cell that makes up the human body, has a specific function. In order to perform its particular function, each cell must be fed glucose plus nutrients, and water. The glucose plus nutrients and water enable the cell to perform whatever function that particular cell was designed/created to perform. Once that function is completed, the cell then expels the used up nutrients.
One additional function of each cell, while it is receiving nutrients, is to either replicate and replace itself because it is becoming older and worn out, or to duplicate itself; i.e., to make an additional copy of itself, to multiply itself in quantity,
Each cell has a mechanism, a “door”, which will open in order to allow the cell to receive glucose plus nutrients, and water.
This “door” mechanism on each cell, is controlled by a “lock”, which is called a Receptor Site.
Hormones can be visualized as a key which must specifically fit into that “lock”, that receptor site, in order to open that door. Some of the door locks, some of the receptor sites, are “master keyed”; they just need some hormone, any hormone, to cause them to open. Other “door locks” — other receptor sites — are specifically keyed to only allow certain specific hormones to open them.
For example, insulin is a hormone which opens the “door locks”, opens a cell via the receptor site, to allow that cell to receive glucose, which is nourishment – one kind of food – for the cell. Once the cell is fed, it can perform its intended function. Afterwards, the used up glucose is expelled, and then the insulin hormone is detached from the receptor site, the door is closed and locked once again, and the used up hormone and used up glucose are flushed from the body.
There are three primary “sex” hormones in the body: Women have high levels of estrogen and progesterone, and a small amount of testosterone. Men have high to very high levels of testosterone, and small amounts of estrogen and progesterone.
The human body needs and requires that the levels of these three particular hormones to be within a certain ratio of each other, in order for the body to function properly, and in order to even think properly. The key purpose of hormone balancing, is to help the individual, male or female, to stop their physical, emotional, and mental suffering. Hormone balancing is not about making the quantities equal
In born-women, PMS and menopause issues and symptoms are caused by the levels of these primary hormones, becoming too far apart in ratio. Which is why born-women who struggle with PMS and/or menopause symptoms, are given supplemental estrogen, or supplemental progesterone — called Hormone Replacement Therapy (HRT). This is done to return hormone levels to within proper ratios, so that she can return to functioning “normally”, physically, mentally, and emotionally.
In order to feminize the male body, it is necessary to significantly reduce levels and production of testosterone, and also to add supplemental estrogen to replace the missing testosterone molecules.