Within the categories of homogeneous and heterogeneous mixtures there are more specific types of mixtures including solutions, alloys, suspensions, and colloids. Solutions (homogeneous) A solution is a mixture where one of the substances dissolves in the other. The substance that dissolves is called the solute. The substance that does not dissolve is called the solvent. An example of a solution is salt water.
Estrogen-only HRT increases the risk of breast cancer, but only when used for more than 10 years. Estrogen-only HRT also can increase the risk of ovarian cancer.The higher breast cancer risk from using HRT is the same for so-called bioidentical and natural hormones as it is for synthetic hormones. Bioidentical means the hormones in the product are identical to the hormones your body produces.strogen-only HRT increases the risk of breast cancer, but only when used for more than 10 years. Estrogen-only HRT also can increase the risk of ovarian cancer.
If You Have Heart Disease: Menopausal hormone therapy was once thought to lower the risk of heart attack and stroke for women with heart disease. But research now shows that women with heart disease should not take it. Menopausal hormone therapy can involve the use of estrogen alone or estrogen plus progestin.For women with heart disease, estrogen alone will not prevent heart attacks, and estrogen plus progestin increases the risk for heart attack during the first few years of use.enopausal hormone therapy can involve the use of estrogen alone or estrogen plus progestin. For women with heart disease, estrogen alone will not prevent heart attacks, and estrogen plus progestin increases the risk for heart attack during the first few years of use.