Lactation of suckling by the baby. The milk ejection reflex (also called let-down reflex) is not always consistent, especially at first. Once a woman is conditioned to nursing, let-down can be triggered by a variety of stimuli, including the sound of any baby. Even thinking about breastfeeding can stimulate this reflex, causing unwanted leakage, or both breasts may give out milk when an infant is feeding from one breast. However, this and other problems often settle after two weeks of feeding. Stress or anxiety can cause difficulties with breastfeeding. The release of the hormone oxytocin leads to the "milk ejection" or
Organic milk There is no evidence that conventional milk contains significantly increased amounts of bovine growth hormone. Any bovine GH that might remain in conventional milk is not biologically active in humans because of structural differences and susceptibility to digestion in the stomach." One review noted that some consumers like the taste of organic milk, while others do not, and suggested that the amount of heat treatment is likely to be a significant factor in determining the taste of the milk. Certain treatments, such as ultra-heat treatments used by milk producers, can impart a slight nutty taste to the milk. Overall, the