The forebrain is the last part of the brain to develop and is associated with long term thinking. It becomes fully developed in the late teens and early twenties. Minerals - These are needed for proper bodily functions particularly during puberty. Extra calcium will help ease your daughter's pre-menstrual syndrome and menstrual cramps. If she retains too much water during this time, help her to reduce her salt intake, and increase potassium-rich foods.
Potassium helps to balance body fluids.
Zinc is needed by all teenagers to ensure that they grow properly and to their full potential. Regular exercise - This is essential for everyone, and particularly for teenagers. Exercise purifies their blood, controls mood swings, and helps their body to produce their own vitamins and minerals needed for proper bodily function. St. John's Wort - If mood swings are not kept at bay with the above techniques, St. John's Wort is an excellent addition to their regimen. Be careful with this herb and know what you are doing before trying it.