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Sexual hormones, used primarily for pregnancy prevention and hormone replacement therapy (HRT), although they may help treat menstrual disorders and benign disorders of the uterus and ovary, are related to breast cancer. This neoplasm is the second major neoplasm in women, just losing for non-melanoma skin cancer. Besides that, facts that can possibly modulate the risk of breast cancer still being study to confirm their real influence in this pathology, especially the use of contraceptives and hormone replacement therapy. PubMed, Lilacs, SciELO, and Google Scholar databases were searched for studies from 2011 to 2018 that examined the association between sex hormones and breast cancer, as well as epidemiological numbers and other risk factors. The descriptors used to study the studies included: gonadal steroid hormones, breast neoplasms, risk factors, estrogens, and progesterone. A total of 22 studies were included in the review. Although most studies have shown a relationship between sex hormones and the incidence of breast cancer, in this study we conclude that the benefits of these hormones outweigh the risks of developing this type of cancer. In addition, it was concluded that other risk factors such as obesity, sedentarism, nulliparity, late gestation, family history, late menopause, early menarche, absence of lactogenesis, and advanced age influence the incidence of this pathology when compared to sex hormones.

A influência do sono na qualidade de vida e no desempenho universitário de discentes do curso de medicinaThe influence of sleep on the quality of life and the university performance of students of the medical course

Intussusception is the invagination of a bowel segment into another immediately adjacent, causing obstruction, and the etiology can be benign, malignant, or idiopathic. The diagnosis may be obtained by ultrasound scans, or computed tomography imaging that can detect characteristics findings. Small bowel obstruction due to intussusception of inverted Meckel's diverticulum is a rare condition that usually constitutes a challenging diagnosis in adulthood. The surgical management in adults is often performed by en bloc resection without reduction attempts. We report a case of CASE REPORTS a middle-aged man with acute intestinal obstruction due to an ileo-ileal intussusception of inverted Meckel's diverticulum with a lipoma that was managed by laparoscopy. Worthy of note is the very scarce number of case reports on this exceeding uncommon association.