Julek Janiczek
Julek Janiczek voted up HappyTwo BeHereTwo's answer

Mood swings are very common, especially during puberty and menopause.  In general, eat a healthy diet high in antioxidants and low in unhealthy fats, get your sleep, exercise - and manage stress through meditation, deep breathing, journaling, etc.

Here are a couple of sites that discuss tips, including other ideas like herbs and massage.

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