Have you had a normal menstrual cycle and then you suddenly miss a period? There are different reasons why this can happen, and if you experience a period you were expecting, you’ll probably want to talk to your health care professional.
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Tagged under: SciShow,science,Hank,Green,education,learn,menstrual cycle,period,skip,amenorrhea,pregnant,breastfeeding,birth control,hypothalamus,gonadotropin releasing hormone,estrogen,progesterone,egg,fertilized,lining,uterus,menstruation,exercise,woman,women,calorie deficiency,anorexia,preservation mode,conserving fuel,reproduction,bone density,osteoporosis,michael,aranda
Clip makes it super easy to turn any public video into a formative assessment activity in your classroom.
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* Whiteboard required for teacher-paced activities
With four apps, each designed around existing classroom activities, Spiral gives you the power to do formative assessment with anything you teach.
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Turn any public video into a live chat with questions and quizzes