Primary amenorrhea is the absence of periods since you were born. It is diagnosed when a female has had no period by age 15. Primary amenorrhea is also described when a girl's first period (called ...

Prof Ben Ansell asks how we can make politics work for all of us in the 21st century.

Dr Chris van Tulleken reveals the revolutionary science inside our bodies when we eat, in the 2024 CHRISTMAS LECTURES from the Royal Institution, supported by CGI. Practising NHS doctor and leading ...

We aim to ensure that everyone has the opportunity to engage with the lectures in their community, as part of a participatory, multi-platform project. As part of this work, we're delighted to partner ...

This unpredictability may continue until periods stop altogether. Excessive exercise is linked to amenorrhea as well. Too much movement can lead to what’s known as the “female athlete triad.” ...

Professor Robert Oppenheimer explains how human communities resemble atoms in the final Reith Lecture from his series 'Science and the Common Understanding'. Show more This year's Reith Lecturer ...

Describe the lactational amenorrhea method of birth control ... During the biology lecture on theories of evolution, Mrs. Sharma was teaching the topic of Lamarckism. Kapil was in a confused ...