18 Replies to “The Menstrual Cycle | 9-1 GCSE and IGCSE Biology | AQA, Edexcel, CIE, OCR, WJEC”

  1. Love you Hazel….you are so sweet and your videos have made things a lot easier for me.
    ❤❤❤❤❤

  2. We tested “Zο Fanvuko” (Google it) when my spouse and I agreed on having one more child. If you wish to discover why this method is life-changing, feel free to check out Google. By simply following a nutritious diet and the plan, I was able to achieve pregnancy in 3 months. Though I am older, I was still able to improve my life style utilizing this method.

  3. Yup, it was helpful:) I was confused with the role of each hormone (which one triggers or inhibits what and yada yada yada) so thank you so much! I finally get it.

  4. This video has been so helpful but I have been looking through some past paper questions and have stumbled on a question asking me to label which curve represents oestrogen in a graph and to explain my answer. Would you happen to know why oestrogen is produced in high amounts before the egg is released and levels of it significantly drops after the egg is released? Thanks!

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