Two ways that bacteria are helpful is that bacteria is used in the production of some foods such as cheese, pickles, butter, yogurt, sour cream, and chocolate. Without bacteri â¦ a, pizza would not be possible. Another way bacteria helps is by humans obtaining many health benefits from the action of bacteria.
Warnings. 1  Do not stimulate your breasts for longer than the necessary 20 minutes at a time. 2  Lactation hormones are only released into your system for a maximum of 20 minutes, so anything in excess is unnecessary and likely to cause irritation.
Lactation: the secretion of milk from the mammary glands of the breast. Breastfeeding: the feeding of an infant at the mother's breast; nursing. The stages of lactation . There are four stages of lactation: Mammogenesis (growth of the breasts) Lactogenesis (the functional change of the breasts so that they can secrete milk) Galactopoiesis (maintaining the production of milk) Involution (the termination of milk production). The important hormones involved in lactation are: prolactin ; oestrogens