Lost in the grunts, groans, reps, and sets, we might overlook and undervalue the remarkable impact exercise has on our most vital organ, the brain. Before we get to the sweat, let’s ground ourselves in science.
Recent studies illuminate a compelling connection between regular exercise and enhanced brain health. As little as 2 1/2 hours of physical exercise per week can significantly improve memory, cognitive efficiency, and executive control (such as problem-solving) in people of all ages, and can slow or prevent the cognitive effects of aging and associated disorders.
Sally Stelling, physiotherapist at the BC Brain Wellness Program, confirms that “both aerobic and resistance training is beneficial in maintaining and improving physical function and brain health.”
Exercise also has a profound impact on mood regulation, serving as a potent antidote to the stresses of modern life. Basically, exercise aids in secretion of endorphins, hormones, neurotransmitters, and a slew of other regulators that not only elevate mood and brain function in the moment but actually work to rewire neural pathways in the brain as early as your first exercise session.
The food you consume can also play a major role in the prevention of cognitive disorders. A 2022 Harvard study that followed more than 77,000 men and women over 20 years found that for each 5 percent of dietary calories, those who ate carbohydrates instead of animal proteins lowered the risk of developing dementia by up to 11 percent; plant proteins lowered risk by 26 percent.
If switching to plant-based proteins seems daunting, consider adding a scoop of protein powder into your diet each day for a step in the right direction.
“Neuroplasticity is currently thought to be one of the processes that can occur in the brain that assists with the learning of new tasks and creating new ‘pathways’ that can be accessed,” says Stelling.
“Current evidence suggests that cardiovascular exercise causes biochemical changes in the brains of animals. There are several growth factors that are seen to increase in response to exercise. These growth factors all play a role in exercise-induced angiogenesis which facilitates neuroplasticity.”
The next time you hit a mental roadblock, consider trading your desk chair for a set of dumbbells.
According to a research review published in the British Medical Bulletin, “Mindfulness is a moment-by-moment awareness of thoughts, feelings, bodily sensations, and surrounding environment.”
Of course, being mindful each moment of the day would be exhausting, so many of us zone out occasionally throughout our day. Doing things as simple as focusing on breath during exercise, a daily evening body scan, or a morning meditation can help refocus.
The reviewers in the British Medical Bulletin report identified “many … conditions, including depression, anxiety, stress, insomnia, addiction, psychosis, pain, hypertension, weight control, cancer-related symptoms, and prosocial behaviours” that can be improved with mindfulness.
Try three rounds (or four if you’re feeling squirrely) of this cardiovascular, circuit-rewiring circuit to boost your brain and brawn.
3 sets of 8 repetitions per side
3 sets of 10 repetitions
3 sets of 12 repetitions
3 sets of 30-second intervals
If our exercises don’t appeal to you, that’s okay! Stelling suggests other ways to incorporate exercise into your daily life, such as parking farther away from your destination, taking the stairs instead of the elevator, gardening, cooking, and housework.
Says Stellar: “The saying ‘If it doesn’t challenge you, it won’t change you’ is particularly applicable when looking at exercise and brain health.” She adds, “The most beneficial exercise is something that you will stick to.” She further reminds us to build up intensity slowly and to exercise safely!
The good news? If you eat a balanced and well-rounded diet, you likely don’t need supplements. The bad news: anywhere from 10 to 40 percent of Canadians are deficient in one or more micronutrients, with vitamins A and D, calcium, and magnesium deficiencies leading the way.
Check out this quick list of supplements that might help boost your brain and body:
Supplement |
Benefits |
greens powders and green tea |
may help improve cognitive and memory function |
choline |
may be helpful in reducing the effects of aging on cognition |
creatine |
benefits may include muscular recovery, enhanced brain function, and brain trauma recovery |
L-theanine |
may help relieve stress, improve mood, aid sleep, and improve attention |
medium-chain triglycerides (MCTs) |
have been found to have stabilizing and cognitive-improving effects in patients with Alzheimer’s disease |