Various people have offered different explanations for the name Taijiquan . Some have said: – 'In terms of self-cultivation , one must train from a state of movement towards a state of stillness. Taiji comes about through the balance of yin and yang . In terms of the art of attack and defense then, in the context of the changes of full and empty, one is constantly internally latent, to not outwardly expressive, as if the yin and yang of Taiji have not yet divided apart.' Others say: 'Every movement of Taijiquan is based on circles, just like the shape of a Taijitu . Therefore, it is called Taijiquan .
The public debate about the potential overmedication of children with ADHD drugs has been more vocal than concerns about antipsychotics or antidepressants, in part because medicating children is an emotional issue. About 4 million children — or 8 percent of all youths in the United States — have been diagnosed with ADHD, and more than half of them take prescription drugs. The subjective nature of ADHD symptoms, along with varying reports about children's behavior from parents and teachers, has made it difficult for researchers to untangle the reasons for the increase in diagnosis of ADHD.