When plants drink water, they use photosynthesis to split it and reform it into oxygen. When animals breathe that oxygen, they split it apart and turn it back into water. The oxygen in the air, and the water in every ocean, lake, and cloud, has been cycling through these phases for at least a billion years. Which ancient creatures breathed the water in your glass? Which prehistoric plants drank the oxygen in your lungs?
Your wiring. Frontal lobe is on the right, Occipital lobe on the left. The large fibers that loop through the Frontal, Parietal, Occipital and Temporal lobes rest just above the Corpus Callosum, in the Cingulate Gyrus. This part of the brain is essential in coordinating and synthesizing the activity of the other lobes into a coherent consciousness.
Looking forwards through your brain with diffusion tensor imaging. The slice is located at the motor cortex. The corpus callosum, temporal lobes, and parts of the motor cortex (in frontal lobes) are visible.