Sleep: The Key to Athletic Performance

 

Is Sleep Important?

How many hours of sleep did you get last night? Sleep is essential for all individuals as it allows the body to recover and perform at its best the next day. Whether in learning, a performance, or using your brain to understand and acquire knowledge, sleep allows one to do these tasks to the best of their ability. While sleep is important for everyone, it is crucial for athletes because to perform at a high level requires plenty of practice and skill/play memorization. Although it may seem best to train more and sleep less as an athlete, it is found that prioritizing sleep maximizes performance and maintains high effort and enthusiasm for an extended period of time. Additionally, it provides a more optimal mental and physical state.

Description: Sleeping Athlete                                                                                        Source: Men’s Journal

 

Sleep Restores Your Body Through REM & NREM Sleep

Firstly, sleeping allows the body to repair and restore muscles, cells and tissues that make up the body for us to perform to our highest capability. By sleeping for the suggested amount of hours, our body is able to go through 4 different stages of sleep, which include both rapid and non-rapid eye movement (REM & NREM) sleep. The first three stages make up NREM sleep and are where the body prepares itself for a deeper sleep later on by slowing down and relaxing everything in the body. Once a deep restorative sleep begins (stage three), physical repairs, restoration of energy, and solidifying memories and information learned in the brain occur. REM sleep is where most dreams occur to stimulate the neurons (nerves) in the brain that are important for learning and mental well-being. Lastly, all stages of sleep of both NREM and REM occur multiple times through the night and, as shown, are crucial in the process of recovery and consolidation of memories.

Description: “Benefits of Optimal Sleep                                                                          Source: Metrifit

 

Lack of sleep has consequences on performance 

Knowing the benefits of sleep, imagine the consequences of not getting enough sleep. Some noticeable signs in athletes not obtaining sufficient quality rest are their decreased reaction time, developing sickness, and being more quickly exhausted. Studies have supported this and there is a link between insufficient sleep and increased amounts of injuries. This consequence is serious as injuries can cause significant setbacks and ruin future professional careers. Watch this video to see more of the effects:

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Source: Performance Health Academy Network, “How Sleep Affects Athletic Performance and Mental Health” by Randy Cohen

 

So should athletes make the switch to get more sleep? Yes, they should! Multiple studies have observed and shown the incredible effects on the body and its significant benefits, as well as the dire consequences sleep can have on your athletic performance and other aspects of your life. Ultimately, athletics should make sleep a priority in their lives in order to maintain their high level of performance.

The Renaissance of Magic Mushrooms!

What do you think of when you hear magic mushrooms, otherwise known as psychedelic or medicinal mushrooms? Do you think of hippies protesting wars? Or high teenagers walking through the woods talking about how “trippy” the trees are? I bet you don’t see a therapist office with a licensed therapist and physician guiding a patient through a powerful psychedelic experience. However, this is precisely where the field of psychedelic research is heading.

Psilocybin, the active compound found in psychedelic mushrooms, is a powerful hallucinogenic that can cause numerous physical and psychological effects in the user. The potential physical effects include numbness, dry mouth, exaggerated reflexes and more. However, it is the psychological effects that make psilocybin a potential therapeutic drug for depression. Psilocin, a psilocybin metabolite, acts on serotonin receptors in the brain, increasing the hormone serotonin. This effect is similar to that of SSRIs, the most commonly used drug for depression. Unlike SSRIs, though, psilocybin has another property that helps combat depression; it increases communication across networks in the brain. This allows for a state of unstrained cognition that helps users resist depressive patterns by assisting the brain in building new neural connections.

Image showcasing the brain connections of a person on psilocybin (b) versus a person taking a placebo (a) Credit: Science Alert

The John Hopkins Center for Psychedelics and Consciousness Research leads the way in psychedelic research. The university hosted a clinical trial into psychedelic mushrooms as a treatment for Major Depressive Disorder (MDD). In this study, participants went through two psilocybin sessions four weeks apart in the context of supportive psychotherapy. Of the 24 participants in the trial, 17 (71%) saw an improvement in their MDD and 13 (54%) were considered in remission after 4 weeks. See the two videos below to hear Roland Griffiths talk about his research and this study and a participant speak about his experience.

YouTube Preview Image The video covers the experience of an individual that was participating in the study and their experience with psilocybin. Video Credit: John’s Hopkins Media Team

YouTube Preview Image The Video covers the motivation behind studying psilocybin as a treatment option for Major Depressive Disorder and the experience of carrying out the experiment. Video Credit: John’s Hopkins Media Team

Although the research into psilocybin as a treatment for depression seems like new, breakthrough research, it is actually a rediscovered field. In the 1960s and 1950s, hundreds of studies were done on the use of LSD and psilocybin as therapeutic agents. However, the association between these drugs and counterculture killed the research in this field until recently. In the past few years, there have been hundreds of studies published each year on psilocybin as a treatment for numerous mental health disorders: PTSD, addiction, and anxiety, along with depression. The renaissance we are experiencing into using psilocybin and other psychedelic compounds as treatment for mental health disorders could help millions of people as the prevalence of these disorders continues to rise.

The Fight Against NEOs: Near-Earth Objects

“Don’t Look Up”, directed by Adam McKay and released in December 2021, follows the story of 2 astronomers who discover an approaching comet that they believe will destroy the Earth. Upon its release resurfaced an unsettling question; what are the odds of an asteroid striking Earth leading to mass extinction, and what actions can we take?

Encountering NEOs: Near-Earth Objects

Near-Earth objects are what scientists identify as asteroids or comets that have been nudged from the main asteroid belt into the inner solar system. The NEOWISE project is one of many ongoing operations tracking and predicting the orbital paths of NEOs to determine if they have the potential to impact Earth. The spacecraft used in this project detects NEOs by the infrared wavelengths they emit as a result of being warmed by the Sun and gathers data regarding the objects’ size and compositions. 

Source: NASA Jet Propulsion Laboratory

Famously known for the Cretaceous extinction which wiped out the dinosaurs, asteroid collisions with the Earth are not uncommon. Harmless small rocks routinely enter Earth’s atmosphere and are burned up due to the immense heating caused by friction. However, complications arise when objects larger than roughly 25 meters strike Earth. In 2013, an asteroid about 20 meters in diameter entered Earth’s atmosphere above the city of Chelyabinsk, Russia. The asteroid exploded before reaching the Earth’s surface, releasing energy equivalent to 30 times that of a nuclear bomb. The event injured over 1600 people and caused estimated infrastructure damage of 33

Informative Image

Trail of Chelyabinsk meteor taken at a distance 200km away moments after the explosion. Image Credit: Alex Alishevskikh

million USD. While encounters with NEOs large enough to cause regional damage only occur every few centuries to millennials, and civilization-threatening objects once every few million years, the environmental and human endangerment of such impacts is great enough for scientists to push for planetary defence operations. 

Planetary Defence Strategies

Planetary defence strategies to prevent encounters with hazardous NEOs are still being developed and tested today. NASA’s Double Asteroid Redirection Test (DART), launched on November 24, 2021, is the world’s first demonstration of the kinetic impactor technique involving the deliberate crashing of the spacecraft into an object. Upon reaching the targeted moon of asteroid Didymos A in September 2022, the transfer of momentum generated from the impact of the spacecraft should change the moon’s orbit enough to redirect its path. If successful, scientists hope to implement this technique to divert threatening NEOs away from the Earth in the case of such future discoveries.

Source: JHU Applied Physics Laboratory

The use of a gravity tractor could act similarly to divert the path of a NEO. This theoretical spacecraft would steer close enough to a NEO where a small but significant attraction with the spacecraft would slowly pull and change the NEO’s orbital path. Other methods involving blowing up NEOs with a powerful laser or simply evacuating the predicted impact areas have also been discussed, however, further research is required.

Should We Be Concerned?

Ultimately, the chances of an asteroid wiping out the human race is arguably infinitesimal. Yet planetary defence remains crucial to protecting our planet as encounters like the Chelyabinsk meteor remind us that even relatively small NEOs can cause significant damage. 

Written by: Joanne Kit

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The Development of Bacteria Eating Plastics

Discovery of plastics

A century ago, the discovery of plastics brought the convenience of a strong and affordable structure. However, finding something so strong and easily disposable creates environmental concerns. Science is rapidly developing to accommodate issues caused by the developments. Science has now permitted the development of bacteria to decompose the plastics that have long contaminated Earth. Using bacteria to destroy plastics may be a long-term sustainable way to preserve the planet.

Plastics and their damage

Plastics are continuing to plague and damage Earth’s environment. Single-use plastics are wasteful and environmentally unfriendly. More than 8.3 billion tons of plastics were manufactured since the 1950s, and over 60% have been buried in landfills. Plastic waste ends up in rivers, dumps, and oceans. Plastics harm aquatic life, increase disease spread, and may lie in waste for centuries. Scientifically, there needs to be a method to destroy PET’s (Polyethylene terephthalate). PET’s common uses include water bottles and plastic containers, many of which are consumed once then immediately disposed of. PET’s are not biodegradable.

Source: rsscience.com

The chemical composition of PET allows bacteria to decompose the structure. The bacteria are capable of decomposing the polyester bond. The C, H, and O bonds are capable of being decomposed by the bacteria.

Bacteria: a solution?

In March 2016, there was a breakthrough scientific discovery. Japanese scientists found that bacteria could consume PET plastics. The idea of bacteria eating plastics empowers the thought of opening industry scale to demolish plastics. The plastic-eating bacteria could open doors to many other forms of waste that would end up in landfills. In 2017, the fungus Ideonella Sakaiensis was seen to be able to decompose plastics. In 2020, strains of bacteria were seen as capable of eating polyurethane plastics.

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Implications

Researchers and industry are far from determining measures to implementing bacteria that will safely and quickly decompose plastics. Further research must be done to seek if the measures are truly environmental. There are unknowns of the side effects of bacteria decomposing plastic. There are uncertainties if toxins to the environment will harm the environment in the long run. Moreover, the rate of decomposition of plastics is currently too slow. There needs to be genetic engineering for faster industrial processes.

Source: Beautiful News Daily

The different forms of bacteria decompose different plastics. Bacteria mainly break down Polyurethane, and bacterial enzymes mainly break down Polyethylene. Mealworms are capable of decomposing Polystyrene. These are all plastics that contaminate the planet.

Developments moving forward

Scientists are currently working on implementing the enzymes of bacteria to break down plastics at a rate six times faster than the current rate. Recently, 12000 new enzymes having the capability of breaking down plastics were discovered. 60% of these newly determined enzymes are unclassified. These enzymes have the potential for industrial use to break down environmentally harmful plastics. With the progress of science, there are many adaptable forms of preserving the environment.

Welcome to SCIE 300 Blogging!

Welcome to the SCIE 300 course blog!

Here are few things to note before you start posting. First of all, you should read the blogging resources page under the Create menu. This will help a lot if you’re new to using WordPress; you’ll find video tutorials about writing posts on this blog, adding media to your posts, tagging, and categorizing. You’ll also find a link to the grading rubric for your blog posts.

Next, check out the blogging guidelines. Here you’ll find the answer to the question: “What are we supposed to blog about?” You can also check out one of last term’s blogs for some additional inspiration.

There are a few important things to keep in mind when blogging. Please do not assume that just because something is online, it is OK for you to use it. For example, unless it is explicitly stated, an image on the internet can not just be copied, saved, and used in your own post without permission to do so. We’ve provided you with a lot more detail about properly using online content, but if you have questions, let us know.

This blog also contains a lot of resources for you. For example, also under the Create menu, there is a list of suggested software to use for your projects. We’ve also collected some writing and presentation resources. Basic audio/visual equipment can be borrowed from SCIE300. Contact the course coordinator for more info.

Under the Explore menu, you’ll find some sample podcasts and videos, links that may be of interest or assistance, a list of groups and associations related to communicating science, as well as a list of local museums and science centres. The Explore menu also contains a library resources page, which you should definitely have a look at. Finally, there is a bookshelf that lists relevant books that are on reserve for you in Woodward Library.

Let us know if you have any questions about the blog or would like to see any other resources made available. Or, if you find something that you think would be useful to the rest of the class, tell us, and we can add it to the resources. Better yet — write a post about it!

Happy blogging!

The Science 300 Team