Should we be worried about early puberty?

Hi!
This is my fifth blog and in this opportunity I will write a summary about a medicine article of the interesting magazine called The Guardian.
The article is: Should we be worried about early puberty? and the link of it is http://www.guardian.co.uk/lifeandstyle/2010/oct/19/worried-about-early-puberty
I choose this article because I considered that this topic is very important in the teenage and also because the changes that suffer the adolescents are very hard mainly the psychological changes.
The article talks about the arrive early puberty and the changes that occur at biological level, psychological and social. The average age for the onset of puberty is 10.25 years in girls, and 11.5 years in boys. The interesting of this article is that in girls, the puberty came about nine months earlier. When arrive the puberty in the teenage, many parents go to the specialists to ask about changes in the puberty, like the menarche in girls or the increase in testicular size.
As Hindmarsh explains, "The age of sexual maturation is highly adaptable. The drive to continue the species is so strong that we have evolved a system that is extremely sensitive to change. If there's even a hint of change, or circumstances that might threaten the drive to procreate, then the hormone system is designed to adapt to that to create the circumstances most likely to result in offspring." In other words he says that the age of puberty is adaptable to the circumstances that the person lives.
In this article appears detailed the most common causes of the earlier puberty some of this causes are a link between exposure to artificial light and TV screens and early puberty, and another connected early puberty to weak maternal bonding.
I think that is very interesting, because in the future as midwives we will work with many young people and we have to know some aspects that are specific of puberty.