My plurk mate friend said she just cried for no reason. She felt she like to cry and so she cried. I secretly wonder why if she just do not want to tell what is the cause. Her mate who had a report about it, said it is possibly because of shifting of hormonal change. Am not a scientist, a doctor or a physician but science book told that. Folks of a certain age too (older age like senior years or alike, oops not senior years of a high school level huh!), would slow its hormones growth. One possible solution for it is through having some human growth hormones and learn to adapt to it. My older folks would consider this one day and I have to get ready for such as I am the one who is responsible to take care of him as behalf and yes whenever that time comes to me, hopefully I could adapt easily to my hormonal change and have some growth hormones. :-)