
Cycling is good for you. This much is obvious. But what might be some of the lesser known benefits?
Here's a fascinating study (that I discovered through Lloyd Alter's blog), which looked at the association between active travel modes and brain health — specifically dementia risk. For this study, the researchers analyzed nearly 500,000 people in the UK and then tracked them for a median period of 13.1 years. How people got around was classified according to the following groups: non-active (like driving or taking public transit), walking only, mixed-walking, and cycling and mixed-cycling. This latter category is meant to capture people who cycle exclusively and who mix it with other forms of mobility.
Based on this, the researchers uncovered these cycling benefits compared to non-active travel:
19% reduction in all-cause dementia
22% reduction in Alzheimer's disease
40% reduction in young-onset dementia
17% reduction in late-onset dementia
Cycling was by far the best performing category. Why is that? Well, exercise in general is good for brain health. It increases blood flow and oxygenation to the brain, decreases cortisol levels (stress hormone), and reduces anxiety and depression, among many other beneficial things. But perhaps the most important feature for this particular discussion is that it's simultaneously a physical and cognitive activity. In other words, it's exercise, but your brain also has to do a lot of other stuff like balance the bike, avoid obstacles (such as car doors being flung open), and generally navigate an environment with many stimuli.
Yesterday Lloyd Alter of Treehugger wrote a great rebuttal to my post about homes for families. His argument was that I missed a whole world of building typologies between single family homes and apartments. (Something that architect and urban planner Daniel Parolek calls “The Missing Middle”.)
Now he’s absolutely right. I didn’t mention it – other than provide an option in the survey for townhomes. And he’s right that it’s a tremendous opportunity for cities looking to increase housing supply and improve affordability.
But the reason I didn’t mention it in my survey is because, here in Toronto, we’re not very good at that middle scale.
I previously wrote a post talking about Toronto’s 3 stages of intensification. It went from high-rise to mid-rise, and then to low-rise intensification. And my argument was that we’re still in and figuring out the mid-rise scale. (There are challenges at this scale, but that deserves a separate post.)
