The common beverage green tea is highly effective at killing a specific oral bacteria, *Fusobacterium nucleotum*. This particular bacteria has been scientifically linked to accelerating tumor growth in colorectal and breast cancer, providing a specific mechanism for green tea's health benefits.

India has the world's lowest incidence of Alzheimer's disease. Researchers speculate this is linked to the high, lifelong consumption of turmeric, which Dr. Weil calls the most powerful natural anti-inflammatory agent known.

A 40-year longitudinal study of Swedish women found a powerful correlation between mid-life fitness and late-life cognitive function. Women who were categorized as "high fit" in their 40s experienced, on average, nine more years of good cognitive health in their 80s compared to their low-fit counterparts.

The health benefits of chocolate come from flavanols, and their content is determined by processing, not just cocoa percentage. Contrary to popular belief, independent studies have found that some milk chocolate bars contain significantly more flavanols than some dark ones.

Contrary to decades of dietary advice, data shows no significant difference between whole-fat and low-fat dairy. In fact, whole-fat dairy products are associated with decreased risks of diabetes and cardiovascular issues.

Dr. Patrick highlights the COSMOS trials, a series of three large, randomized controlled trials. They found that older adults (65+) taking a standard multivitamin (Centrum Silver) for a year experienced a reduction in global brain aging by ~2.1 years and episodic memory aging by ~4.9 years.

Upon waking, your brain is full of cortisol and adrenaline, making caffeine ineffective. Wait 90 minutes for these natural stimulants to drop, then have coffee. This provides a bigger "bang for your buck" and allows time to rehydrate first after sleep's dehydrating effect.

To significantly slow the progression of age-related macular degeneration, a leading cause of blindness, a surprisingly modest diet change is effective. Consuming just two servings of oily fish and 2.7 servings of green leafy vegetables per week reduces the risk of the disease advancing by 41%.

Gum disease (periodontitis) is a significant risk factor for dementia, as harmful bacteria can enter the bloodstream and contribute to brain inflammation. Studies show that xylitol, found in certain gums and mouthwashes, improves the oral microbiota by inhibiting these specific harmful bacteria, offering a low-risk preventative measure.