1. What's so important about neurotransmitters?
Neuroscience's increased understanding of neurotransmitters is one of science's most important stories of the last 100 years. Neurotransmitters are so important to brain functioning because they are chemical substances that carry information from one neuron to the next. Most drugs that influence behavior do so by influencing neurotransmitters.

2. If scientists discover a difference between men's and women's brains, doesn't that mean that men and women are by nature are different, and not much can be done to change it?
There are differences in men's and women's brains, but there are far greater similarities than differences between men's and women's brains. Just because men and women are different doesn't mean that their cannot be changed.

3. How much is actually known about the human brain?
We know a lot more than we did a century ago but this universe within us still remains one of science's great frontiers to be explored more fully. Many unanswered questions still remain about the brain's role in consciousness, memory, mental disorders, and many other areas. Remember that the human brain is the most complex piece of matter in the known universe.

4. Is there really a difference between someone who is "right-brained" and someone who is left-brained" in their thinking?
There are some differences in the functioning of the left and right hemispheres of the brain but there are many myths about left brain/right brain thinking. Most neuroscientists believe the concept of the brain being split into two tidy halves-one being the source of logical thinking (left hemisphere) and the other being the source of creative thinking (right hemisphere) is simplistic. Complex thinking in normal people involves communication between both sides of the brain.