pressure is too large, irregular diet
used to stay up late
for women, who is the greatest harm because often squeezed breast breast, the edge of the table, the situation may be more severe. Because lean sideways or lying on the table, right in the breasts on the fulcrum of extruding. Research shows that, if the hard edge of the table by breast squeeze nearly 1.5 hours, can interfere with the normal metabolism of the breast, a long time will cause adverse consequences.
for adolescent girls harm is far-reaching. Because the deep sleep during the night is the peak of the hormone secretion, lack of sleep, will seriously interfere with endocrine function, affecting the development of puberty, including the development of the breast.