Latest / Morning Medical with Dr. Chow / Social Media Food Choices, Prolonged Sitting Risks, and Daylight Saving Time Effects

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Social Media Food Choices, Prolonged Sitting Risks, and Daylight Saving Time Effects · Morning Medical with Dr. Chow

• 0:00
  Hello and welcome to Morning Medical with Dr.
• 0:02
  Chow.
• 0:03
  I'm your host, Dr.
• 0:04
  Chi-Ming Chow.
• 0:05
  In today's episode, we're diving into a pressing topic that's been making waves in the
• 0:09
  health community: the impact of fast food and sugary drink advertisements on social media,
• 0:15
  particularly how they affect children.
• 0:17
  This is based on a recent report from CBC News.
• 0:23
  Canadian researchers are raising alarms about the pervasive marketing of fast food, soft
• 0:28
  drinks, chocolates, and other snacks on social media platforms.
• 0:33
  They argue that these advertisements contribute significantly to "normalizing" unhealthy eating
• 0:38
  habits among children and teenagers.
• 0:40
  The researchers are advocating for stronger policies to protect young people from these
• 0:44
  influences.
• 0:46
  A study published in the journal PLOS Digital Health has highlighted this issue by examining
• 0:52
  the social media marketing strategies of the top 40 food brands in Canada.
• 0:56
  Fast-food restaurants and sugar-sweetened beverages were found to be the most common
• 1:01
  products featured in social media posts.
• 1:04
  According to Monique Potvin Kent, a professor at the University of Ottawa, Canadian children
• 1:10
  are exposed to over 4,000 food and beverage advertisements annually through their digital
• 1:15
  devices, while teenagers see as many as 9,000 ads.
• 1:20
  This sheer volume of marketing makes it incredibly challenging for parents to promote
• 1:25
  healthy eating habits at home.
• 1:27
  Potvin Kent began her research into this topic after experiencing firsthand the effects of
• 1:33
  such marketing on her own children.
• 1:35
  Her then three-year-old repeatedly asked to visit a specific fast-food restaurant,
• 1:39
  demonstrating what researchers refer to as "pester behavior." This term describes how
• 1:45
  children, influenced by constant advertising, repeatedly request specific products, often
• 1:51
  unhealthy ones.
• 1:53
  The study also notes that changes in the "food environment"—including the availability and
• 1:58
  pricing of foods, as well as advertising—affect dietary choices.
• 2:02
  While the World Health Organization has recommended mandatory regulations on marketing
• 2:07
  foods high in saturated fats, trans fats, salt, and certain sugars, there is still much work to
• 2:14
  be done to implement these guidelines globally.
• 2:17
  Charlene Elliott, a professor at the University of Calgary, points out the extensive reach of
• 2:23
  food-related social media posts.
• 2:25
  While not involved in the Ottawa study, she emphasizes the growing influence of social
• 2:30
  media on young people's food choices.
• 2:33
  The study’s findings suggest that the volume of such messaging has likely increased since 2020,
• 2:39
  as social media usage continues to rise among youth.
• 2:43
  Potvin Kent and her team have called for government intervention to restrict unhealthy
• 2:48
  food and beverage marketing to children.
• 2:50
  They highlight examples from other countries, such as Quebec's ban on commercial advertising
• 2:55
  to children under 13 and Chile's removal of popular characters from cereal boxes.
• 3:02
  The United Kingdom is also considering expanding its television marketing restrictions
• 3:06
  to digital platforms.
• 3:09
  These insights underscore the urgent need for policies that ensure a healthier food
• 3:14
  environment for our children.
• 3:17
  As we continue to explore these issues, it's crucial for parents, educators, and
• 3:22
  policymakers to work together to protect the health of future generations.
• 3:27
  Prolonged sitting has emerged as a significant health concern, even for young adults who are
• 3:33
  otherwise active.
• 3:34
  A recent study by researchers from the University of Colorado Boulder and the
• 3:39
  University of California Riverside sheds light on how extended periods of sitting can increase
• 3:44
  the risk of heart disease and accelerate signs of aging, regardless of age or physical
• 3:50
  activity levels.
• 3:52
  The research involved over 1,000 participants, including 730 twins, and focused on how sitting
• 3:59
  impacts health metrics like cholesterol levels and body mass index.
• 4:05
  Despite meeting the minimum recommended physical activity guidelines—about 20 minutes
• 4:09
  of moderate exercise daily—the findings revealed that this is insufficient to counter
• 4:14
  the adverse effects of prolonged sitting.
• 4:17
  Chandra Reynolds, the study’s senior author and a professor at the University of Colorado,
• 4:23
  emphasized the need for less sitting and more vigorous exercise to mitigate premature aging
• 4:28
  risks.
• 4:29
  The study, published in PLOS One, was conducted with Ryan Bruellman, a doctoral candidate at
• 4:34
  the University of California Riverside, who was inspired to investigate this issue after
• 4:39
  observing increased sitting habits during the pandemic.
• 4:43
  Bruellman noted that young adults often underestimate the long-term impacts of their
• 4:46
  current lifestyles, assuming they have ample time to adopt healthier habits later.
• 4:51
  However, the research indicates that lifestyle choices made during this critical period can
• 4:56
  significantly influence future health.
• 5:00
  The study analyzed data from participants aged 28 to 49, with an average age of 33.
• 5:06
  On average, they reported sitting nearly 9 hours a day and engaging in moderate physical
• 5:11
  activity for 80 to 160 minutes weekly, alongside less than 135 minutes of vigorous
• 5:18
  exercise weekly.
• 5:19
  Notably, despite Colorado’s active lifestyle, these figures are likely above national
• 5:24
  averages.
• 5:26
  Key health measures, such as total cholesterol to high-density lipoprotein ratio and body mass
• 5:33
  index, were scrutinized.
• 5:35
  The results showed that increased sitting corresponded with signs of aging, and merely
• 5:40
  adding moderate activity did little to alleviate these effects.
• 5:44
  Those who sat for 8.5 hours daily, even while meeting exercise guidelines, were at a
• 5:49
  "moderate to high risk" for cardiovascular and metabolic diseases.
• 5:55
  Incorporating vigorous activities like running or cycling for 30 minutes daily helped reduce
• 6:01
  these risks.
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  Participants who engaged in such activities exhibited cholesterol and body mass index
• 6:06
  levels akin to those of individuals 5 to 10 years younger.
• 6:11
  However, the study concluded that even vigorous exercise could not entirely offset the negative
• 6:16
  impacts of prolonged sitting.
• 6:19
  The study highlighted the value of examining identical twins, who share all their genes, to
• 6:24
  isolate lifestyle factors affecting health outcomes.
• 6:28
  Among twins with different sitting and physical activity habits, reducing sitting time proved
• 6:33
  more beneficial for improving cholesterol levels than simply adding exercise to a
• 6:38
  sedentary routine.
• 6:40
  The overarching message from the researchers is clear: strive to reduce sitting time and
• 6:45
  incorporate vigorous exercise into your routine.
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  Suggestions include using standing desks, taking breaks for short walks, and organizing
• 6:54
  walking meetings.
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  If possible, aim for activities that increase your heart rate for at least 30 minutes daily
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  or engage in extensive workouts during weekends.
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  Ryan Bruellman hopes this study will prompt policymakers to revisit physical activity
• 7:10
  guidelines, particularly concerning acceptable sitting durations.
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  Meanwhile, Chandra Reynolds encourages young adults to form habits now that will benefit
• 7:20
  their long-term health, emphasizing the importance of proactive lifestyle changes.
• 7:26
  As we transition into discussing the impact of daylight saving time on health, it's important
• 7:32
  to recognize how this seemingly minor change can have significant implications.
• 7:38
  The concept of daylight saving time, which involves adjusting our clocks forward in the
• 7:42
  spring and backward in the fall, was originally introduced to make better use of daylight.
• 7:47
  However, research has shown that this practice can disrupt our internal body clocks, leading
• 7:52
  to various health issues.
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  One of the most immediate effects of daylight saving time is the disturbance to our sleep
• 7:59
  patterns.
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  The abrupt loss or gain of an hour can result in sleep deprivation, which is known to
• 8:06
  exacerbate a range of health problems.
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  Studies indicate that the transition into daylight saving time in spring is particularly
• 8:15
  challenging, as losing an hour of sleep can lead to increased sleepiness, reduced
• 8:20
  concentration, and a higher likelihood of accidents both on the road and at work.
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  Moreover, the shift in time has been associated with a temporary spike in the incidence of
• 8:32
  heart attacks.
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  Research published in the New England Journal of Medicine found that the risk of heart attack
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  increases by about 24 percent on the Monday following the spring time change.
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  This is thought to be due to the disruption of circadian rhythms, which can affect
• 8:48
  cardiovascular function.
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  Mental health is another area impacted by the clock change.
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  Some individuals experience mood disturbances, including increased feelings of anxiety and
• 9:00
  depression, particularly during the fall transition when daylight hours decrease.
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  The reduction in natural light exposure can disrupt the production of melatonin, a hormone
• 9:12
  that regulates sleep-wake cycles, potentially affecting mood and mental well-being.
• 9:18
  Despite these concerns, there are potential benefits to daylight saving time.
• 9:23
  Extended daylight in the evening can encourage more outdoor activities, which can be
• 9:27
  beneficial for physical health and mood.
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  People may engage in more exercise, social interactions, and other positive activities
• 9:35
  during the longer evenings.
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  However, it's essential to weigh these benefits against the potential disruptions to sleep and
• 9:42
  overall health.
• 9:44
  To mitigate the negative effects of daylight saving time, experts recommend gradually
• 9:50
  adjusting your sleep schedule a few days before the time change.
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  This can help your body adapt more smoothly to the new schedule.
• 9:59
  Additionally, maintaining a consistent sleep routine, ensuring exposure to natural light
• 10:05
  during the day, and creating a restful sleep environment can all support better sleep
• 10:10
  hygiene and reduce the adverse impacts of the time shift.
• 10:15
  As discussions continue on whether daylight saving time should be abolished or adjusted,
• 10:20
  it's crucial to consider the health implications.
• 10:23
  While the debate is ongoing, understanding how these time changes affect our health can help
• 10:28
  individuals make informed decisions and adopt strategies to minimize any negative effects.
• 10:35
  Today, we're addressing a critical issue that has far-reaching implications for global
• 10:40
  health: the health threats posed by climate change.
• 10:44
  This topic is increasingly urgent as the effects of climate change become more
• 10:48
  pronounced, impacting not only the environment but also human health in profound ways.
• 10:54
  Dr.
• 10:55
  Renee Salas, an affiliated faculty member at the Center for Climate, Health, and the Global
• 11:00
  Environment at Harvard Chan School, has been vocal about the multifaceted health impacts of
• 11:06
  climate change.
• 11:07
  As a member of the global Lancet Countdown and founder of the Lancet Countdown U.S.
• 11:13
  Brief Working Group, she brings attention to how climate change exacerbates existing health
• 11:18
  disparities and creates new health challenges.
• 11:22
  A primary driver of climate change is the burning of fossil fuels, which not only
• 11:27
  contributes to global warming but also produces harmful pollution.
• 11:32
  This pollution is linked to a range of health issues, including respiratory problems like
• 11:37
  asthma in children and cardiovascular diseases in adults.
• 11:41
  Communities of color and low-income communities, often located near polluting
• 11:45
  facilities, are disproportionately affected by these health threats.
• 11:51
  Dr.
• 11:51
  Salas describes climate change as a 'meta problem' that underlies and worsens other
• 11:56
  issues.
• 11:58
  It's leading to an increase in diseases, straining healthcare systems, and causing
• 12:03
  societal disruptions.
• 12:05
  Effects such as extreme heat, poor air quality from wildfires, and the spread of vector and
• 12:11
  waterborne illnesses are just some ways climate change impacts health.
• 12:16
  One stark example is the record heat that Palm Springs, California experienced this year,
• 12:22
  reaching an all-time high of 124 degrees Fahrenheit.
• 12:26
  Such extreme temperatures can lead to heat-related illnesses and even fatalities,
• 12:31
  particularly affecting the most vulnerable populations.
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  Moreover, climate change is linked to extreme weather events.
• 12:40
  The organization World Weather Attribution found that climate change was a significant
• 12:45
  driver of Hurricanes Helene and Milton.
• 12:49
  These storms not only caused immediate destruction but also long-term health impacts,
• 12:54
  such as IV fluid shortages in hospitals due to damaged production facilities.
• 13:00
  Addressing climate change requires overcoming challenges like 'pluralistic ignorance,' where
• 13:07
  individuals underestimate others' willingness to tackle the issue.
• 13:11
  Despite perceived polarization, there's a strong consensus among Americans to act on
• 13:17
  climate change, with many supporting renewable energy initiatives.
• 13:22
  Dr.
• 13:22
  Salas suggests several policy recommendations to mitigate the health impacts of climate
• 13:27
  change.
• 13:28
  These include rapidly reducing fossil fuel use, transitioning to clean energy, and building
• 13:34
  resilient communities.
• 13:36
  Investing in public health systems and supporting climate readiness are crucial steps
• 13:41
  in protecting people from climate impacts.
• 13:45
  On a global scale, financial support is vital for achieving climate goals, especially for
• 13:50
  low- and middle-income countries.
• 13:53
  The United States has committed to significant contributions, but more is needed to align with
• 13:58
  global climate finance demands.
• 14:01
  The Lancet Countdown's recent findings highlight the urgency.
• 14:06
  Many health indicators related to climate change have reached alarming levels, with the
• 14:10
  United States being a major contributor to greenhouse gas emissions.
• 14:15
  However, the transition to renewable energy is showing promising health benefits, such as
• 14:21
  reducing premature deaths linked to air pollution.
• 14:25
  In the coming years, significant progress can be made if health and equity are prioritized in
• 14:31
  climate action.
• 14:32
  The current administration has laid important groundwork, but further transformative actions
• 14:38
  are needed to meet commitments like the Paris Agreement and ensure the well-being of future
• 14:43
  generations.
• 14:45
  In Manitoba, surgical volumes have reached a high point, surpassing pre-pandemic levels for
• 14:50
  the first time in the fiscal year from April 2023 to March 2024, according to a report by
• 14:57
  the Canadian Institute for Health Information.
• 15:00
  This increase marks a significant step in addressing the backlog caused by the COVID-19
• 15:05
  pandemic.
• 15:07
  However, Doctors Manitoba emphasizes that the backlog remains substantial, with recovery
• 15:12
  progressing slowly.
• 15:15
  Dr.
• 15:15
  Randy Guzman, President of Doctors Manitoba and a vascular surgeon, highlighted at a recent
• 15:21
  news conference that while the increase in surgical volume is a positive development, it's
• 15:26
  not sufficient given the province's population growth of five to six percent since 2019.
• 15:31
  The number of surgeries completed last year was only one percent higher than pre-pandemic
• 15:36
  levels, with 1,107 more surgeries than the period from April 2019 to March 2020.
• 15:42
  "This 1,000-plus [surgeries] is not enough, we still have a lot of work to do," Dr.
• 15:47
  Guzman stated.
• 15:49
  The backlog, which grew to 41,267 cases by March 2023, saw a slight reduction with the
• 15:56
  additional surgeries performed, bringing the number down to 40,160 cases.
• 16:02
  Yet, Dr.
• 16:04
  Guzman notes that clearing the backlog involves addressing multiple layers, including staffing
• 16:09
  and resource shortages within the healthcare system.
• 16:13
  The shortage of family doctors and specialists, along with the need for diagnostics and
• 16:18
  specialized equipment, are critical issues that need resolution.
• 16:23
  Keir Johnson, a spokesperson for Doctors Manitoba, pointed out the complexity of the
• 16:28
  backlog, noting that some patients might have deteriorated to the point where surgery is no
• 16:33
  longer an option, or alternative treatments have been found.
• 16:37
  "It's very likely that some of the people who are waiting for those surgeries have
• 16:41
  deteriorated to the point that surgery is no longer an option," Johnson explained.
• 16:47
  "Some of these people may have passed away while they were waiting for surgery or doctors
• 16:52
  may have found a different treatment option."
• 16:55
  According to the CIHI report, Manitoba currently has the second-largest remaining
• 17:00
  surgical backlog among Canadian provinces, only behind Quebec.
• 17:05
  The slow recovery is attributed to the challenges in increasing surgical capacity,
• 17:10
  which is hampered by the same staffing and resource issues.
• 17:15
  "Although we are recovering, it has been a bit slower," Dr.
• 17:19
  Guzman admitted.
• 17:21
  "Patients are obviously impacted with this."
• 17:24
  Manitoba's Minister of Health, Uzoma Asagwara, stated that the New Democratic Party government
• 17:30
  has been making significant efforts to clear the backlog, focusing on those who have been
• 17:35
  waiting the longest.
• 17:37
  However, Asagwara acknowledged that the backlog did not accumulate overnight, and previous
• 17:42
  government actions during the pandemic contributed to the situation.
• 17:47
  Kathleen Cook, the Progressive Conservative health critic, argued that the previous
• 17:51
  government made substantial progress by implementing a task force in 2021, which
• 17:57
  completed over 85,000 diagnostic tests and surgeries.
• 18:02
  However, this task force was later disbanded by the New Democratic Party after it came to
• 18:07
  power, a decision criticized by Cook for lacking a clear plan to eliminate the backlog.
• 18:13
  In response, Health Minister Asagwara defended the decision, stating that the task force
• 18:19
  lacked transparency and incurred significant costs without effectively addressing the
• 18:24
  backlog.
• 18:26
  Instead, the current government is focusing on expert consultations and targeted investments
• 18:32
  in healthcare to improve outcomes for Manitobans.
• 18:36
  Last month, Shared Health introduced a new information management system aimed at tracking
• 18:41
  surgeries and reflecting more accurate wait times, prioritizing those who have waited the
• 18:47
  longest.
• 18:48
  While this system represents a significant advancement in data collection, Doctors
• 18:52
  Manitoba cautions that it's too early to assess its impact on the backlog.
• 18:57
  Pediatric surgeries, however, are still lagging, with numbers remaining 12 percent
• 19:02
  below pre-pandemic levels.
• 19:05
  Dr.
• 19:06
  Guzman revealed a proposal for a limb preservation clinic at St.
• 19:10
  Boniface Hospital, which was not approved following the change in government.
• 19:15
  This proposal highlights ongoing challenges in resource allocation and healthcare planning.
• 19:21
  In a fascinating study, researchers have found that sugar rationing during World War II in the
• 19:26
  United Kingdom may have long-term health benefits.
• 19:30
  The study, led by Tadeja Gracner from the University of Southern California, suggests
• 19:36
  that individuals who experienced sugar rationing in their early years have a
• 19:40
  significantly lower risk of developing type 2 diabetes and hypertension later in life.
• 19:47
  The research focused on individuals born during and just after wartime sugar rationing in the
• 19:52
  United Kingdom.
• 19:53
  It revealed that those who had restricted access to sugar and candy during the critical
• 19:58
  first 1,000 days of life—from gestation to age two—had a 35 percent lower risk of developing
• 20:04
  type 2 diabetes and a 20 percent lower risk of high blood pressure compared to those born
• 20:09
  after rationing ended.
• 20:12
  Gracner explained that while concerns about the impact of high sugar consumption on children’s
• 20:17
  health are growing, there’s limited evidence on the long-term causal effects.
• 20:21
  The unique situation of sugar rationing during World War II provided a natural experiment to
• 20:26
  assess these effects, offering insights into how early-life nutrition can influence health
• 20:31
  outcomes decades later.
• 20:34
  Type 2 diabetes, a metabolic disorder affecting the body's ability to process sugar, and
• 20:40
  hypertension, a leading risk factor for heart disease, are prevalent health issues.
• 20:45
  According to the Centers for Disease Control and Prevention, these conditions affect
• 20:49
  millions in the United States.
• 20:52
  The study found that sugar rationing delayed the onset of these diseases by several years
• 20:57
  among those exposed to it in early life.
• 21:01
  The researchers utilized data from the United Kingdom Biobank, analyzing health information
• 21:06
  from over 60,000 adults born between October 1951 and March 1956.
• 21:13
  They compared the health outcomes of 38,000 individuals who experienced rationing with
• 21:18
  22,000 who did not.
• 21:21
  Their findings were corroborated by reports from the National Food Survey, which documented
• 21:25
  dietary habits during and post-rationing.
• 21:29
  Interestingly, the diets of both cohorts were similar except for sugar intake, which was
• 21:34
  significantly higher in the post-rationing period.
• 21:37
  This difference highlights the critical role sugar consumption plays in long-term health.
• 21:42
  Previous research has also linked high maternal sugar intake with increased risks of insulin
• 21:48
  resistance and related health problems in offspring.
• 21:52
  Gracner hopes that this study will spark changes in how we approach sugar consumption in
• 21:57
  early childhood.
• 21:58
  She emphasizes the importance of reducing added sugars in children's diets, which can be
• 22:03
  challenging given the prevalence of sugar in foods marketed towards young children.
• 22:09
  The study underscores the need for regulatory changes to help parents provide healthier
• 22:14
  options for their children.
• 22:16
  As we conclude today's episode, it's clear that the past can provide valuable lessons for our
• 22:22
  present health challenges.
• 22:24
  The historical context of sugar rationing offers a lens through which we can understand
• 22:28
  the profound impact of diet on lifelong health.
• 22:33
  Thank you for joining me on this journey through today's medical topics.
• 22:37
  Until next time, stay informed and take care of your health.