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The article discusses prolactin, known as the "milk hormone," which is secreted by the pituitary gland located at the base of the brain. Prolactin is naturally present in both men and women, but its levels increase significantly during pregnancy and breastfeeding to stimulate milk production.

The article explains that an abnormal increase in prolactin levels outside of pregnancy and breastfeeding can lead to several health issues, including bone thinning, reduced sexual activity, and infertility in both men and women. For women, it can also cause irregular menstrual cycles. The article also mentions that elevated prolactin levels are often due to a benign tumor in the pituitary gland or the use of certain medications. Dr. Wiam Hussein, an endocrinology specialist, reassures readers that treatment is usually straightforward, involving medications that reduce prolactin production from the pituitary gland.