Awareness and arousal are associated with different parts of the brain. Awareness involves the , whereas arousal is determined by the .

prefrontal cortex/reticular activating system

Explanation:

The prefrontal cortex is the part of the frontal lobe of the brain. The function of the prefrontal cortex is to control the planning, motivation, decision making, controls the emotions, behavior and also responsible for the awareness of self and the surrounding.

This region consists of cortical urinary center which controls the urination, anterior and middle arteries which controls the flow of blood. Thus this center is essential for self-awareness.

The reticular activating system can be defined as the system of neuron network. This is located in the brain stem, this is projected anteriorly to the hypothalamus which produce a behavior response. It is also connected to the posteriorly to the thalamus and is responsible for activation of awake in an individual.

"1. it should be, it has been for about 20 years, and it's really not much different in the end than breeding animals to have particular traits. there are always concerns about genetically engineered animals/plants affecting the environment in unexpected negative ways, but i can't think of an example where the fears didn't turn out to be baseless.  

first, as you point out, it would be a great advance in pharmacology, to be able to tailor drugs and their doses to me. the pros involve better medical treatment. the cons involve privacy issues like insurance companies denying coverage to people with genetic risk factors. looking at dna markers wouldn't affect the frequency of genetic diseases, but it would allow detection of them earlier. and ok, actually i suppose that if people used this information to avoid having children with genetic diseases, some might decrease in frequency."