Book SummaryUnlocking the Keto Code, by Steven R. Gundry

In The Ageless Brain (2025) neurologist Dale Bredesen upends conventional thinking about cognitive decline. He writes that it’s not an inevitable part of getting older and you don’t need miracle drugs to stave it off. Instead, you can reduce your risk of developing cognitive decline if you understand and address what’s happening in your brain. His protocol is for everyone who’s motivated to take preventive action before serious symptoms appear—whether you’re a young adult, middle aged, or older, and whether you have a family history of dementia or not.

In this guide, we’ll explore Bredesen’s ideas on cognitive decline, looking at how dementia is the result of your body’s defensive mechanisms gone wrong, how you can determine your personal vulnerability to cognitive decline, and the lifestyle changes you can make to prevent it. We’ll supplement his ideas with insights from other neurologists, researchers, and experts on cognitive health.

Most people believe that mental and physical deterioration go hand in hand with aging. They assume that, with every year that passes, they’ll look and feel older, suffer more aches and pains, and become more susceptible to debilitating diseases that nudge them closer to death.

Entrepreneur, Silicon Valley investor, and best-selling author Dave Asprey argues that you can grow older in years and extend your lifespan without suffering these ill effects. In Super Human, he draws on advancements in anti-aging science to explore ways to slow down and reverse the aging process, optimize your mental and physical health, and extend your lifespan.

This guide explores Asprey’s advice for improving your health now while ensuring you live a longer, healthier, and more youthful life in the future. Additionally, we’ll expand on each of his ideas with research, advice, and actionable ideas from health practitioners and longevity specialists.

Many of us dread aging—we associate it with loss, decline, and loneliness, believing that life inevitably gets worse as we get older. But our fears don’t tell the full story. In Joyspan, gerontologist Kerry Burnight argues that anyone can learn to embrace aging joyfully. In doing so, you lengthen what she calls your “joyspan”—the number of years you maintain optimism and a sense of fulfillment. She offers several research-backed strategies for lengthening your joyspan and explains how this is key to living a long, healthy life.

Our guide explores Joyspan in two parts. First, we’ll define joy and joyspans, explain how joy changes as you age, and discuss the relationship between joy, health, and longevity. Then, we’ll explore six key strategies for finding joy as you age. We’ll also examine the science of aging and anti-aging strategies, and we’ll describe other experts’ advice for living the happiest, healthiest, and longest life possible.