The Dose

Steven Laviolette, a neuroscientist at the University of Western Ontario, dives into the complex effects of nicotine on cognition. He reveals how some non-smokers use nicotine to enhance attention and fine motor skills, despite its addictive potential. The conversation highlights how nicotine interacts with brain mechanisms to improve memory while discussing the risks of dependency, especially among younger users. Laviolette also warns of the double-edged nature of nicotine products, emphasizing the importance of seeking healthier alternatives.

 If you're noticing people around you sniffling, coughing or sneezing, it could well be the flu. Public health data show that flu cases make up almost a quarter of all respiratory viruses circulating in Canada. Infectious diseases specialist Dr. Zain Chagla explains why cases are so high right now, and why you should consider getting a flu shot if you haven't already.For transcripts of The Dose, please visit: lnk.to/dose-transcripts. Transcripts of each episode will be made available by the next workday. For more episodes of this podcast, click this link.

Chocolate isn't just a sweet treat, but could have some health benefits too. In a special Valentine's Day edition of The Dose, registered dietitian Anar Allidina breaks down which kind of chocolate is the healthiest, and some common health misconceptions around the delicious dessert.For transcripts of The Dose, please visit: lnk.to/dose-transcripts. Transcripts of each episode will be made available by the next workday. For more episodes of this podcast, click this link.

HPV (human papillomavirus) is one of the most common sexually transmitted infections in the world, regardless of gender or sexual orientation. While most people infected with HPV recover, certain strains can increase the risk of cervical and other cancers, including oral, anal, and head and neck. Dr. Deborah Money, head of the department of obstetrics and gynaecology at the University of British Columbia, breaks down how HPV spreads and why sexually active people should consider getting vaccinated.For transcripts of The Dose, please visit: lnk.to/dose-transcripts. Transcripts of each episode will be made available by the next workday. For more episodes of this podcast, click this link.

A new Canadian Medical Association survey suggests that health misinformation is on the rise. Law professor and research director of the Health Law Institute at the University of Alberta Tim Caulfield gives examples of health and science misinformation, breaks down how to spot it, and offers tips on how we can talk to friends and family about misinformation they might believe is true.For transcripts of The Dose, please visit: lnk.to/dose-transcripts. Transcripts of each episode will be made available by the next workday. For more episodes of this podcast, click this link.

The U.S. surgeon general has called for cancer warnings on alcohol and Health Canada suggests a maximum of two drinks a week. As Dry January winds down, we ask: How can I cut back or even quit drinking alcohol? Dr. Peter Butt, an addiction medicine specialist and clinical associate professor at the University of Saskatchewan, explains how much alcohol is too much and breaks down how people can cut back.For transcripts of The Dose, please visit: lnk.to/dose-transcripts. Transcripts of each episode will be made available by the next workday. For more episodes of this podcast, click this link.

Human metapneumovirus (HMPV) is one of the viruses responsible for the common cold. A spike in cases in China has made headlines, though the World Health Organization assures infection numbers are at expected levels. Dr. Satchan Takaya, division head for infectious diseases at the University of Saskatchewan, explains what HMPV is and how we can better communicate about infectious disease outbreaks abroad.For transcripts of The Dose, please visit: lnk.to/dose-transcripts. Transcripts of each episode will be made available by the next workday. For more episodes of this podcast, click this link.

Cases of norovirus, a stomach bug that causes vomiting and diarrhea, are on the rise in Canada and the U.S., and experts say there are easy steps we can take to protect ourselves. Dr. Zain Chagla, an infectious diseases specialist and associate professor at McMaster University in Hamilton, Ont., explains how norovirus spreads, as well as how steps like simple handwashing can keep us safe. For transcripts of The Dose, please visit: lnk.to/dose-transcripts. Transcripts of each episode will be made available by the next workday. For more episodes of this podcast, click this link.

For many, winter weather means seasonal affective disorder. If you already live with depression, you might notice your symptoms worsen. Research now shows that exercise — as well as therapy and medication — can help. Catherine Sabiston, a University of Toronto professor, director of the Mental Health and Physical Activity Research Centre and Canada Research Chair in physical activity and mental health, explains how exercise can alleviate the signs of depression.For transcripts of The Dose, please visit: lnk.to/dose-transcripts. Transcripts of each episode will be made available by the next workday. For more episodes of this podcast, click this link.

Experts say that frequent use of social media is harming teens’ health, and the Australian government recently passed a law banning it for kids under 16. Here in Canada, Quebec is debating whether to follow suit. Psychiatrist and UBC associate professor of medicine Dr. Shimi Kang says rather than an all-out ban, parents should talk with their kids and figure out a plan that’s right for them.