Book excerpt: "Only recently has it been discovered that the brain produces new brain cells throughout our entire lives, a process called neurogenesis. The rate at which we form new brain cells has a profound influence upon every aspect of our life. When the rate of neurogenesis is low, we see cognitive deficits and memory problems, anxiety and stress, depression, and lowered immunity. Life is difficult. With high rates of neurogenesis we see the opposite: enhanced cognitive abilities, rapid learning, emotional resilience, protection from anxiety, stress and depression, heightened immunity and robust health. We flourish. Life is wonderful. Given the neurotoxic norms of society, it's almost universally true that your brain is working far below its capacity. It is deteriorating much faster than it needs to. What good is living longer if your brain can't go the distance? Recent discoveries in the emerging field of neurogenesis reveal the secrets to radically improve your brain's health. You can operate at a higher level than you ever dreamed possible--at any age!" --