The video also covers techniques for reducing the number of brain cells for those of us that are too smart for our own good.
tldr: Ways to increase neurogenesis: 1. Calorie restriction of 20 to 30 percent 2. Intermittent fasting (i.e., spacing the time between your meals) 3. Intake of flavonoids, which are contained in dark chocolate or blueberries 4. Omega-3 fatty acids, present in fatty fish, like salmon