This important study reports that two distinct waves of ovarian follicles contribute to oocyte production in mice. The paper provides large amounts of data that will benefit future studies, although ...

Each primordial follicle comprises an oocyte arrested in the diplotene stage of the first meiotic division and surrounded by a single layer of follicular cells.

If you're experiencing hair loss, diet may play a role. Nutrient deficiencies, supplement use, and other aspects of diet can affect hair loss.