Canada Chronic Disease Trends: Lower Rates, Bigger Burden

A large modern hospital building in downtown Toronto
File photo: St. Michael’s Hospital, Toronto. Photo: Raysonho via Wikimedia Commons, CC0.
Rates down, burden upUpdated 17 October 2026

Trend summary

  • Canadians are less likely to die of cancer or heart disease at any given age than a generation ago. But there are more older Canadians, so the total burden keeps rising.
  • Cancer caused 26.2% of all deaths in 2024 and heart disease 17.7%. Life expectancy recovered to 82.16 years.
  • An estimated 254,100 people will be diagnosed with cancer in 2026, even as age-adjusted rates fall.
  • Deaths involving dementia rose 4.8% in 2024, and measured adult obesity reached 33%.
26.2%of deaths in 2024 were from cancer
254,100projected new cancer cases, 2026
27,825deaths involving dementia, 2024 (+4.8%)
33%of adults measured as obese, 2022-2024

What the numbers show

Statistics Canada’s Deaths, 2024 release lists cancer (26.2%) and heart disease (17.7%) as the top causes, with stroke, chronic lung disease, diabetes and Alzheimer’s also in the top ten. Deaths involving dementia reached 27,825; dementia would rank third if it were counted as a single cause. Life expectancy rose to 82.16 years, nearly back to its 2019 level.

The 2026 cancer projections (CMAJ) expect 254,100 new cases and 87,900 deaths, while age-standardised incidence and death rates continue to fall. In 2023, 46.1% of adults had at least one chronic disease, and Heart & Stroke estimates that more than 6 million Canadians live with heart disease or stroke.

What is driving it

Ageing is the main reason counts rise while rates fall: 70.8% of dementia deaths in 2024 were people aged 85 and over. Weight is moving the wrong way: measured obesity among adults rose from 25% in 2016-2019 to 33% in 2022-2024, with the sharpest increase among adults under 40. Smoking has fallen from about half of adults in 1965 to about 11% today, which helped cut heart disease death rates by more than 80% over seven decades (Heart & Stroke).

Recent cases

  • 13 April 2026: Canadian cancer statistics project 254,100 new diagnoses in 2026 (CMAJ).
  • 3 February 2026: Heart & Stroke reports more than 6 million Canadians living with heart disease or stroke, more than previously estimated (Heart & Stroke).
  • 13 January 2026: Statistics Canada’s 2024 death data show dementia-involved deaths up 4.8% and life expectancy recovering (Statistics Canada).

Press releases and official reports, 2023–2026

Five key releases a year for the last four years, newest first. Most come from federal departments and agencies, the Transportation Safety Board, Statistics Canada and provincial governments; a few news and trade reports are included where they are the clearest public record of an event. Releases from 2007–2022 are in the expandable list after 2023.

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View 20 years of major Canadian chronic disease press releases (2007–2026)80 more from 2007–2022, five a year, newest first

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Photo list

A hospital building with a curved glass entrance
File photo: Sunnybrook Health Sciences Centre, Toronto. Photo: Canmenwalker via Wikimedia Commons, CC BY 4.0.
A brick hospital building beside a river path in Montreal
File photo: Hôpital Marie-Clarac, Montréal-Nord. Photo: Denis Tremblay, Ville de Montréal via Wikimedia Commons, CC BY 2.0.

How this page is built. Figures come from the official statistical releases linked above; where agencies publish provisional numbers we say so, because they are revised. Canadian statistics are often collected by provinces and territories, and some national series run several years behind, so we say which area and year each figure covers. Photos are public-domain or Creative Commons images credited in each caption; file photos are illustrative and are not from the events described unless the caption says so. This page tracks trends and is not personal safety, medical, legal or financial advice.