 Hi………………………….. Due to some of the physiological changes in the environment. There are some of the changes happening in the human life. The main change happening is the puberty of the girls. Now days and all girls are attaining puberty in early stage. This due to environmental changes, nutritional change in the diet, hormonal changes. Attaining puberty leads to breast cancer, reckless sexual behavior. Early exposure to adult behaviors affects the pituitary gland, which releases the neuro transmitters which acts on ovaries. Early puberty reflects on the maturity of the brain.