Nowadays women have a clear understanding that Oestrogens promote breast cancer. Many are also aware that progesterone opposes and balances the undesirable effects of estrogen and consequently protects from cancer.
While the general focus is on Oestrogen, we actually need a healthy balance of both Oestrogen and Progesterone because they both work hand in hand. If each of them had a voice to announce their effect on our body’s cells, Oestrogens would excitedly shout: “Proliferate! Multiply! Grow in abundance, no matter what!“, while Progesterone would calmly state: “Nurture in good measure! Maintain! Don’t go overboard! Keep a balance!”
This simplified explanation may help to understand why ‘Oestrogen dominance’ is very undesirable, why using supplementation of ‘unopposed estrogen’ (using estrogen without progesterone) is potentially dangerous, and why we must not use Oestrogen supplementation at all if we have a history of cancer.
You may have heard of ‘Oestrogen dominance’ and of our bodies being flooded with foreign (xeno-)estrogens from our industrialized environment.
It is common knowledge that Oestrogens are used in contraceptives as well as in HRT. And you may know of nature identical hormones and particularly about Natural Progesterone Cream.
Do not confuse Progesterone with Progestins.
Progestins are synthetic hormones that are very similar to progesterone, but have a different effect on the body. To a certain extend they oppose Oestrogens, which is why they are often added to oestrogen supplementation. Progestins bind to and use the body’s receptor sites for progesterone, which can cause unwanted side effects, since the body cannot use Progestin’s in the same way as bioidentical Progesterone.
Natural Progesterone is necessary for the development and survival of the embryo, while synthetic Progestins can have the opposite effect. They are used in the ‘morning after pill’ to terminate a pregnancy by preventing the development of the fertilized ovum. This is just one example of the differences between natural Progesterone and synthetic Progestin.
In addition to having its own intrinsic hormonal effects, Progesterone is also the precursor, an essential building block, of other hormones like Testosterone and Oestrogen. The body uses Progesterone to build as many of these other hormones as it requires, at any given point in time, and these requirements vary from day to day.
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