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Health and Wellness: Sleep and its Effects on the Brain

Kelsey Maxwell • Jul 11, 2023

As we’re enjoying long summer nights and early morning sunrises, it can be easy to miss out on our 8 hours. And while it’s important to soak up every moment of this beautiful season, it’s a good time to remind ourselves of the effects sleep has on the brain. 

The role sleep plays in recovery cannot be overstated. Without good quality sleep, the brain and the body both cease to operate at their optimum level. Dr Abhinav Singh, a Medical Director of the Indiana Sleep Center and a member of the Medical Review Panel of SleepFoundation.org weighs in; "Sleep is essential for the brain to maintain several of its functions," he said. "During sleep, the brain does several housekeeping things for itself and the body during sleep; muscle repair, immune system modulation and memory are all being processed during sleep.


Sleep is governed by a small, almond-sized part of the brain called the hypothalamus. As well as regulating your body temperature, managing emotional responses and controlling appetite, it’s also responsible for releasing hormones and setting your internal body clock. However, to work efficiently it needs the right light signals to be sent to it at the right times. If your sleep is disturbed or irregular, it simply won’t function as it should, leaving you in a spiral of tiredness during the day and sleeplessness at night. "We now know that a ‘deep pressure wash’ takes place during deep sleep in the first half of the night whereby the toxic protein beta-amyloid is removed actively during sleep.


Poor sleep may lead to an accumulation of this metabolic waste, which can affect memory, learning, and emotional regulation."


One study, published in Nature in 2017, found that lack of sleep had the same effect on the brain as drinking too much alcohol, slowing down response times and making you feel sluggish. Another common issue associated with lack of sleep is the increase it provokes in the stress hormone cortisol. As it rises, cortisol suppresses melatonin, preventing adequate sleep and leading to mood swings, anxiety and possibly behavioral issues.


So how can we properly prioritize sleep? It’s all about mastering your sleep hygiene. Put simply, that’s all the things you need to put in place before bed in order to maximize your chances of sleeping soundly, ranging from putting your phone down well before bed to learning which is the best sleeping position. You’ll be amazed at how changing just a few habits can make a real difference to the quality of your sleep.


Try establishing a sleep schedule where you wake up at the same time every day, seven days a week. Block out any unwanted noise and go for cool, breathable fabrics on your bed and nightclothes too. Avoid drinking alcohol in the evening and make sure your room is as dark as it can be too so the photoreceptors in your eyes can send a message to your brain that it’s time to sleep.


It’s important that the bedroom is cool as well. According to research published in the medical journal Sleep, warm rooms can reduce the amount of time that your body spends in REM sleep.


Finally, don’t be tempted to use your cell phone or a tablet while in bed, as the blue light they emit acts to stifle melatonin. "Give yourself a wind-down ritual that's free of any unnecessary stimulation," added Dr Singh. "And remember, the most important aspects of sleep hygiene are routine, rhythm and repetition.

 

Source: https://www.livescience.com/how-sleep-affects-the-brain

By Laura Chanin 11 Apr, 2024
This commentary is compliments of Manulife Investments - 2024 starts with a bang! Global markets stormed out of the gate in the first three months of 2024. The combination of a resilient consumer base and lower inflation levels created a positive backdrop for investors. The S&P 500 Index, the S&P/TSX Composite Index, and the MSCI World Index were up 10.2%, 5.8% and 8.4%, respectively, in Q1. The euphoria, however, didn't extend to the fixed-income space—Canadian and U.S. bonds (measured by the FTSE Canada Universe Bond Index and Bloomberg U.S. Aggregate Bond Index) were down 1.2% and 0.8%. In our view, equities are priced for the best case scenario, with markets expecting to avoid a recession, on the belief that we’ll see a gradual decline in inflation, and that central banks will soon start cutting interest rates. In such an environment, any headline surprises that state otherwise may create potentially choppy markets in the near term. How do stocks and bonds perform when the government begins to cut rates? Investors have been waiting in anticipation for the U.S. Federal Reserve (Fed) to start cutting interest rates. They believe that lower interest rates will help drive the markets even higher. That said, history suggests things may not be quite as simple. We looked at the previous nine easing cycles, dating back to 1970. In the first chart, we’ve indicated (in red) periods that we believe to mark the beginning of an easing cycle. These are easily identifiable in recent easing cycles; however, those in the early 1980s aren’t and require subjective interpretation.
By Kelsey Maxwell 11 Apr, 2024
Calling all high achievers! Maybe fun isn’t the first place your head goes to when thinking of high performance. We’re talking to you- the hard worker, the busy parent, the dedicated athlete, the responsible sibling. We’ve got compelling, scientific evidence proving how important it is for you to incorporate fun and play into your life! You’ll also find some practical suggestions for incorporating more fun into your daily routine. Research indicates that happy individuals tend to be healthier physically, have lower inflammatory markers, and may even have improved productivity at work. Happiness has also been linked to better mitochondrial health and is a key factor in sustainable high performance. A recent study on twins suggests that 35% to 50% of your happiness is genetically predetermined. That means there's still a significant portion of happiness that's within our control. Interestingly, humans typically aren’t the best at knowing exactly what makes them happy. Dr. Gillian Mandich, who studies the science of happiness, says that it’s not the big shiny moments that matter, but rather the small moments over time that determine how happy we are. It is recommended to dedicate at least two hours per day to fun. Engaging in playful activities, such as games or sports not only increases happiness, but it’s also important for your brain. A study found that juvenile rats that engaged in “rough and tumble” play had higher activation in certain areas of the brain compared with control rats. They also had greater brain-derived neurotrophic factor (BDNF) gene expression, suggesting that play is important for neurodevelopment. Humor is another way to sprinkle small bursts of joy throughout the day. Laugh therapy is currently being used to treat depression and anxiety, as well as stress-related disease. Research shows that laughter actually supresses cortisol, and boosts dopamine and serotonin hormone levels. Playfulness isn't just beneficial for personal wellbeing; it can also have positive effects in professional and practical settings. Play has been shown to reduce stress, increase productivity and job satisfaction, and improve overall work quality and team cohesion. Play can also serve as an effective coping mechanism for stress, allowing you to mobilize cognitive resources and build resilience in the face of challenges. Contrary to the belief that play is only for children, research demonstrates its importance for health and wellbeing across all age groups, adults being the most prone to high stress levels. Remember that striving for constant happiness can be counterproductive. Happiness is a result, not a pursuit. Accepting the ups and downs of life and focusing on creating joyful moments, when possible, can lead to a more sustainable sense of wellbeing. In summary, incorporating more fun, play, and happiness into our lives can lead to numerous benefits, including improved physical health, enhanced productivity, and greater overall wellbeing. It's essential to prioritize these elements and recognize their significance for both personal and professional fulfillment. If you’ve been all work, no play lately- this is your sign to get out there and have some FUN! Source: https://drgregwells.com/blog/your-brain-on-play-the-science-of-how-fun-can-fuel-wellbeing References: Dfarhud, D., M. Malmir, and M. Khanahmadi. “Happiness & health: The biological factors—systematic review article.” Iranian Journal of Public Health 43, no. 11 (November 2014): 1468–1477. Panagi, L., L. Poole, R.A. Hackett, and A. Steptoe. “Happiness and inflammatory responses to acute stress in people with type 2 diabetes.” Annals of Behavioral Medicine 53, no. 4 (March 20, 2019): 309–320. Salas-Vallina, A., M. Pozo-Hidalgo, and P.R. Gil-Monte. “Are happy workers more productive? The mediating role of service-skill use.” Frontiers in Psychology 11 (March 27, 2020): 456. Picard, M., A.A. Prather, E. Puterman, A. Cuillerier, M. Coccia, K. Aschbacher, Y. Burelle, and E.S. Epel. “A mitochondrial health index sensitive to mood and caregiving stress.” Biological Psychiatry 84, no. 1 (July 1, 2018): 9–17. Chick, G., C. Yarnal, and A. Purrington. “Play and mate preference: Testing the signal theory of adult playfulness.” American Journal of Play 4, no. 4 (2012): 407–440. Wallace, J. “Why it’s good for grown-ups to go play.” Health and Sci- ence. Washington Post (May 20, 2017). https://www.washingtonpost . com/national/health-science/why-its-good-for-grown-ups-to-go- play/2017/05/19/99810292-fd1f-11e6-8ebe-6e0dbe4f2bca_story.html. Magnuson, C.D., and L.A. Barnett. “The playful advantage: How playfulness enhances coping with stress.” Leisure Sciences 35, no. 2 (2013): 129–144. Neale, D. “A golden age of play for adults.” British Psychological Society (March 25, 2020). https://www.bps.org.uk/psychologist/gold- en-age-play-adults. Edwards, D. “Play and the feel good hormones.” Primal Play (June 23, 2022 ). https://www.primalplay.com/blog/play-and-the-feel-good- hormones. Guitard, P., F. Ferland, and É. Dutil. “Toward a better understand- ing of playfulness in adults.” OTJR: Occupation, Participation and Health 25, no. 1 (January 1, 2005): 9–22.
By Kelsey Maxwell 11 Apr, 2024
The Canadian dollar's recent decline to its lowest level in almost two years against the US dollar is primarily attributed to several factors, including worsening economic outlook, rising inflation concerns, and diverging monetary policies between the US Federal Reserve and the Bank of Canada.  Inflation Concerns: The persistently high inflation in the United States has raised expectations of aggressive interest rate hikes by the Federal Reserve. This anticipation of higher interest rates in the US has led to a flight to safety, with investors favoring the US dollar over other currencies, including the Canadian dollar. Diverging Monetary Policies: The Federal Reserve is expected to raise its benchmark interest rate significantly, possibly reaching as high as 4 or 5 percent, whereas the Bank of Canada may not be able to match such aggressive rate hikes due to concerns about the impact on the housing market and consumer spending. This disparity in monetary policy paths between the two central banks is widening the gap between the US dollar and the Canadian dollar. Commodity Prices: The Canadian dollar is also influenced by commodity prices, particularly oil, as Canada is a major oil exporter. The recent decline in oil prices, coupled with softness in other commodity prices, has further weighed on the Canadian dollar's performance. Market Sentiment: Market sentiment plays a crucial role in currency movements. The prevailing perception among investors is that the US dollar is a safer haven during times of uncertainty, leading to increased demand for the US dollar and consequent weakness in the Canadian dollar. Expectations for Future Performance: Some analysts predict further depreciation of the Canadian dollar against the US dollar in the near term, with projections of the loonie falling below 73 cents by the end of the year. This outlook reflects concerns about the Canadian economy's relative weakness compared to the US economy. Overall, the combination of inflation worries, diverging monetary policies, commodity price movements, and market sentiment has contributed to the recent depreciation of the Canadian dollar against the US dollar, with implications for Canada's economic outlook and trade competitiveness. Source: https://www.cbc.ca/news/business/canadian-dollar-1.6585291
11 Apr, 2024
If you’re delving into the intricacies of managing retirement savings, particularly the transition from RRSPs to RRIFs, read on. This transition is crucial to understand, especially considering the tax implications and mandatory withdrawal requirements associated with RRIFs. Missing the deadline to convert your RRSP to a RRIF can have significant tax consequences, as the entire value of your RRSP becomes taxable income, potentially pushing you into a higher tax bracket. This underscores the importance of staying vigilant about conversion deadlines. You can convert anytime but the last year to convert is the year you turn 71. While RRSPs and RRIFs share similarities, such as holding the same investments and being fully taxable upon withdrawal, there are key differences to note, such as the lack of contribution capability in RRIFs and the mandated minimum withdrawals. Managing RRIF withdrawals is a strategic endeavor, involving considerations like tax implications, OAS claw backs, and income splitting with a spouse. Additionally, converting a RRIF back to an RRSP is possible under certain circumstances, offering flexibility in retirement planning. Understanding the mechanics of RRIF conversion, the timing of withdrawals, and the options for structuring payments is essential for optimizing retirement income and minimizing tax liabilities. Navigating the transition from RRSPs to RRIFs requires careful planning and consideration of various factors to ensure financial stability and tax efficiency in retirement. Reach out to us anytime for more information or clarity! Source: How to cope with the RRSP-to-RRIF deadline in your early 70s - MoneySense How to cope with the RRSP-to-RRIF deadline in your early 70s - MoneySense
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