Dr Martin Juneau

Dr Martin Juneau, M.D., FRCP

Cardiologue, directeur de l'Observatoire de la prévention de l'Institut de Cardiologie de Montréal. Professeur titulaire de clinique, Faculté de médecine de l'Université de Montréal. / Cardiologist and Director of Prevention Watch, Montreal Heart Institute. Clinical Professor, Faculty of Medicine, University of Montreal.

The positive impact of coffee on the risk of atrial fibrillation
7 January 2026
 | 
Dr Martin Juneau, M.D., FRCP

Surprising results show that people with atrial fibrillation who regularly consume coffee have a reduced risk of recurrence.

Should we be worried about the presence of cadmium in dark chocolate?
7 January 2026
 | 
Dr Martin Juneau, M.D., FRCP

Cadmium is a toxic metal that can accumulate naturally in certain plants, including the cacao beans used to make chocolate. However, studies show that in the vast majority of cases, the amount of cadmium ingested from normal consumption of dark chocolate (1-2 servings per day) is below toxic thresholds and poses no health risk.

Eat better, pollute less
6 January 2026
 | 
Dr Martin Juneau, M.D., FRCP

A diet rich in plant-based foods is associated with both increased life expectancy and a significant reduction in greenhouse gas emissions.

Seasonal time changes do not influence the risk of myocardial infarction.
6 January 2026
 | 
Dr Martin Juneau, M.D., FRCP

There is much talk about abolishing seasonal time changes due to their potentially harmful effects on health, particularly cardiovascular health. However, this negative impact has recently been challenged by a large-scale study that observed no variation in the incidence of myocardial infarction in the week following the time change, both in spring and autumn.

Residential wood burning: A major cause of air pollution
6 January 2026
 | 
Dr Éric Thorin, Ph. D. | Dr Martin Juneau, M.D., FRCP

In Quebec, an estimated 1,400 premature deaths are caused each year by air pollution linked to wood fires.

The importance of being active after a heart attack
6 January 2026
 | 
Dr Martin Juneau, M.D., FRCP

A study reports that after hospitalization for an acute coronary syndrome, low levels of physical activity combined with long periods of sedentary behavior significantly increase the risk of mortality in the following year.

Can ice baths improve health?
5 January 2026
 | 
Dr Martin Juneau, M.D., FRCP

Studies suggest that cold-water immersion facilitates muscle recovery after intense exercise and may also have positive effects on immunity and overall well-being. However, caution remains necessary, as cold exposure has complex effects on the cardiovascular system and can trigger cardiac complications in individuals at risk.

The Potential Harmful Effects of Food Packaging
6 August 2025
 | 
Dr Martin Juneau, M.D., FRCP

An increasing number of studies show that certain chemical compounds found in food packaging can contaminate food and may cause harmful health effects.

To Live Longer, Replace Butter with Vegetable Oils!
6 August 2025
 | 
Dr Martin Juneau, M.D., FRCP

A recent study reports that replacing one tablespoon of butter daily with vegetable oil could reduce the risk of premature death by 17%.

The Impact of Evening Exercise on Sleep
6 August 2025
 | 
Dr Martin Juneau, M.D., FRCP

A study shows that people who exercise in the evening can improve their sleep quality by finishing their physical activity at least 4 hours before bedtime.

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