|
Nearly half is modifiable
New research from the McKinsey Health Institute and the World Economic Forum puts brain health conditions at roughly 24 percent of the total global disease burden - nearly a quarter of all healthy years of life lost worldwide.¹ In Canada, an estimated 772,000 people are living with dementia today, rising to more than 1.7 million by 2050.²
But the more useful finding is what can be changed. The 2024 Lancet Commission identified 14 modifiable risk factors that together account for approximately 45 percent of global dementia cases.³ Hypertension. Elevated LDL cholesterol. Diabetes. Hearing and vision loss. Physical inactivity. Depression. Social isolation.
Read that list and something becomes clear: most of it is cardiometabolic. What protects the heart protects the brain. Research on the Brain Care Score, a measure built entirely from modifiable factors, found a five-point improvement was associated with a 43 percent lower risk of cardiovascular disease.¹ And timing compounds the benefit - modelling suggests that delaying the onset of Alzheimer's disease by just five years would cut its prevalence by 41 percent by 2050.¹
|