Many steels add to the iron-steel mix other metals that give the entire substance desirable properties such as strength, heat resistance, or flexibility. Steel is considered a mixture rather than a compound because the iron does not chemically bond with the carbon and other components.
Some of estrogen's effects include: 1  Increasing serotonin, and the number of serotonin receptors in the brain. 2  Modifying the production and the effects of endorphins, the feel-good chemicals in the brain. 3  Protecting nerves from damage, and possibly stimulating nerve growth.
Clearly, estrogen (or oestrogen) is important to our over all well-being... and our hair-that 'barometer of health' - can be one of the first areas affected when something upsets the hormonal balance in our bodies.strogen... 1  Reduces bodily hair. 2  Promotes the growth of the hair on your head. 3  Controls your height (explaining why men are usually taller than women). 4  Reduces the mass of your muscles. 5  Promotes the growth of breasts and gives you your 'womanly curves'. 6  Helps regulate your menstrual cycle. 7  Keeps your skin smooth.