Day 4 of your Menstrual Cycle

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Day 4 of your Menstrual Cycle

276 days to go...

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the brain releasing hormones on day 4 of menstrual cycle

What's happening inside

In this color 3-D scan of the human brain, the green central structure is the hypothalamus. This controls emotions and body temperature, and releases chemicals that regulate the release of hormones from the pituitary gland (green circle at bottom).

Like many women, you may sometimes feel ruled by your hormones, and it helps to understand why they fluctuate.
pregnancy day by day information book cover

Pregnancy Day by Day

By Consultant Editor, Paula Amato, MD

Original source: Pregnancy Day by Day.

Copyright © 2008 Dorling Kindersley Limited.

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