At Least 15 Percent Of Human Females

Because Vision Appears So Effortless, We Are Like Fish Challenged To Understand Water.

One Of The Most Pervasive Mistakes Is To Believe That Our Visual System Gives A Faithful Representation Of What Is "out There" In The Same Way That A Movie Camera Would.

There Are Three Deaths. The First Is When The Body Ceases To Function. The Second Is When The Body Is Consigned To The Grave. The Third Is That Moment, Sometime In The Future, When Your Name Is Spoken For The Last Time.

A Typical Neuron Makes About Ten Thousand Connections To Neighboring Neurons. Given The Billions Of Neurons, This Means There Are As Many Connections In A Single Cubic Centimeter Of Brain Tissue As There Are Stars In The Milky Way Galaxy.

It Turns Out That Dopamine Is A Chemical On Double Duty In The Brain. Along With Its Role In Motor Commands, It Also Serves As The Main Messenger In The Reward Systems, Guiding A Person Toward Food, Drink, Mates, And All Things Useful For Survival. Because Of Its Role In The Reward System, Imbalances In Dopamine Can Trigger Gambling, Overeating, And Drug Addiction - Behaviors That Result From A Reward System Gone Awry.