This book sheds light on how to prevent Alzheimer's disease and dementia through dieting and also elucidates how to optimize cognitive health. Additionally, how to mitigate risks for chronic diseases by embracing an anti-inflammatory, raw fruitarian diet are also delineated in this book. Preventing Alzheimer's disease and dementia simply lies in embracing a raw fruitarian diet coupled with prolonged fasting. By eating eating fruits and vegetables that are characterized by high levels of alkalinity that also have a low glycemic load, such as avocados and cauliflower, you not only attain an alkaline body with a blood pH level above 7.35, but can also create a microcosm in your body that also preempts the formation of tumors and fatty plaque build up in the arteries, especially when combined with the power of prolonged fasting. Alzheimer's disease, a chronic neurodegenerative disease that causes dementia and severe cognitive decline, can be rendered preventable through making lifestyle changes that entail embracing a nutrient dense, raw fruitarian diet in tandem with prolonged fasting to optimize cognitive health. Fasting has been found to bolster cognitive function, cognitive alertness, cognitive learning, and cognitive memory (Wnuk, 2018). "Fasting also profusely simulations the production of the brain derived neurotrophic factor, or BDNF. This aforementioned protein plays critical roles in learning, memory, and the generation of new nerve cells in the hippocampus. Furthermore, fasting also renders the neurons more stress resistant and also helps neuroplasticity, learning, memory, and the resistance of the brain to stressors" (Wnuk, 2018). Moreover, the consumption of nutrient dense, fruits and vegetables will help stave off Alzheimer's disease and dementia since these food groups are inundated with brain healthy ingredients, such as antioxidants, vitamins, minerals, and phytonutrients that help protect the neurological system. Furthermore, the consumption of nutrient dense, alkaline fruits and vegetables not only bolster brain health and mental acuity, but also enhances cognitive memory, problem solving capabilities, and concentration (Webber, n.d.). Dietary choices have tremendous bearing on the individual's future cognitive health. We can either promote optimal cognitive health by creating an internal environment which the brain can flourish and repair itself or elicit a microcosm that promotes cognitive decline simply through dietary decisions. Poor nutritional choices will ravage the brain overtime (Sherzai & Sherzai, 2017) while prudent nutritional choices will nourish the brain and augment cognitive health. "Some researchers have even argued that Alzheimer's is essentially a garbage disposal problem, the brain's inability to cope with what we feed it over a lifetime. Poor nutrition damages the brain in so many ways: it causes inflammation and the buildup of oxidative by-products, clogs blood vessels, and deprives your brain of the nutrients it needs to strengthen neurons, their connections, and critical support structures" (Sherzai & Sherzai, 2017). Moreover, optimizing cognitive health goes beyond eating an exorbitant amount of anti-inflammatory, nutrient dense, raw fruit and vegetables and undergoing prolonged fasting. Optimizing cognitive health also entails having an active lifestyle in which you participate in physical exercises daily, pursue stress alleviating activities and mindful breathing exercises daily, maintain healthy relationships with friends and family members, attain considerable undisturbed REM sleep, and partake in multimodal activities in order to challenge and engage (Sherzai & Sherzai, 2017) multiple regions of the brain. A nutrient dense, anti-inflammatory raw fruitarian diet can help prevent cancer, cardiovascular disease, type 2 diabetes, kidney stones, stroke, Alzheimer's disease, and dementia. Dietary choices will ultimately have tremendous bearing on the future state of your health.