Healthy living is about more than just adding years to your life—it’s about adding life to your years. In this follow-up episode of The Tonic, naturopathic doctor Colleen Hartwick joins host Jamie Bussin to dive deeper into the concept of health span—the number of years you live in good health, free of chronic disease and decline.

Building on their previous conversation, Dr. Hartwick outlines the key lifestyle pillars which support not just longevity, but quality of life as we age. She emphasizes the importance of movement, explaining why resistance training is the gold standard for protecting muscle and bone health. But it doesn’t stop there—something as simple as walking or hiking, especially when paired with weighted resistance, can dramatically improve cardiovascular fitness, blood sugar balance, and even reduce stress. She mentions how a weighted vest can increase intensity of a walk, or simply putting canned goods in a backpack will do. Jamie suggests how a canine companion will keep you honest. Balance and flexibility exercises, such as yoga and stretching, are equally essential for preventing injury and maintaining mobility later in life. This will help avoid the risk of fragility fractures. They close out this portion of the podcast emphasizing the age related importance of stretching.

Gut health takes center stage as Dr. Hartwick explores how the microbiome influences immunity, mood, metabolism, insulin sensitivity, and even cognitive function. With age, digestion slows and the gut becomes more vulnerable to imbalance. Supporting digestion with fiber-rich foods to increase guy motility, supplementing with probiotics, and mindful eating habits can help protect against inflammation and decline.

On the topic of cognition, Dr. Hartwick reassures listeners that it’s never too late to strengthen brain health. Exercise helps the body produce BDNF (Brain-Derived Neurotrophic Factor), a compound crucial for protecting neurons and supporting new neural connections. Mental fitness is equally important: puzzles, word games, and social activities provide powerful protection against stress-related brain shrinkage.

Sleep emerges as another non-negotiable. Without deep, restorative rest, the brain cannot clear away toxins and repair itself. Dr. Hartwick highlights how alcohol, cannabis, and certain medications can impair sleep cycles, leaving the brain vulnerable to “clutter” that fuels forgetfulness and cognitive decline. She points out how deep sleep allows the brain to do some housekeeping.

Finally, emotional well-being and community prove just as vital as diet and exercise. As humans, we’re wired for connection, and isolation can increase stress and harm health. Building strong support networks of family, friends, and community fosters resilience and vitality well into later life. Puzzles and word games like scabble are a few examples of ways to stimulate active cognition. They both take a little time to brag about their crossword competence.

The conversation also touches on inflammaging—the chronic low-grade inflammation that accelerates aging. Dr. Hartwick offers a two-pronged approach: address the “fire starters” such as processed foods, stress, pharmaceuticals, and environmental toxins, while also incorporating “firefighters” like anti-inflammatory spices, omega-3s, quercetin, and supportive botanicals. She stresses how humans are social primates, and the importance of community for buffering stress.

Dr. Hartwick’s biggest takeaway? Small, consistent changes matter most. Whether you start with improving sleep, moving more, or eating for gut health, every choice contributes to protecting your future self. Health span is not about perfection—it’s about progress.

If you’re ready to live not just longer, but better, this episode is packed with practical, science-backed strategies you can begin today.