Ontario Health Study
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Over 300 researchers at universities, research institutes and hospitals across Ontario are conducting this study. The Study has been initially funded by the Ontario Institute for Cancer Research, the Canadian Partnership Against Cancer, the Ontario Agency for Health Protection and Promotion, and Cancer Care Ontario. In addition, nearly every university, teaching hospital, and chronic disease advocacy group has endorsed the Study and are proud community ambassadors throughout the province.
05/27/2026
In honour of the upcoming this Sunday, we want to remind you that it’s not too late to quit smoking. The Canadian Cancer Society estimates that smoking causes about 30% of cancer deaths in Canada and is linked to roughly 72% of lung cancer cases.
Check out how OHS participants responded to our smoking question in our Follow-Up Questionnaire 2!
05/21/2026
It's International Tea Day! Did you know that tea is the world’s second most popular beverage — over 2.3 billion cups are enjoyed daily. How many OHS participants include tea in their diet? If you’re an OHS participant who received an email invitation to the HEAL (HEALthy Eating and Supportive Environments) Study, log into your OHS account & tell us what foods and drinks you typically consume so that we can study the relationship between diet, physical activity, and environmental factors. Share your habits to support our research.
NOTE: You can take part only once you’ve received your invitation email. Invites are sent in batches, so watch out for your invite in the near future!
05/06/2026
It’s Mental Health Awareness Week! The Canadian Mental Health Association, Ontario, estimates about one in five Canadians face mental health challenges each year. This can include conditions like anxiety, depression or substance-use issues, and it affects people across all ages and backgrounds.
Check out some responses we received from our Follow-Up Questionnaire 2:
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661 University Avenue
Toronto, ON
M5G0A3
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| Monday | 9am - 5pm |
| Tuesday | 9am - 5pm |
| Wednesday | 9am - 5pm |
| Thursday | 9am - 5pm |
| Friday | 9am - 5pm |
