Tag Archives: physical health

Some People Say It’s Easy to Quit

 

Image Credit:
https://thedoctorweighsin.com/opioid-addiction-cancer-of-our-generation/

You’ve probably heard the news, or seen posts  online about the opioid crisis affecting Canada.  British Columbia (B.C.) is the hardest hit province with the death rate of 1, 399 people in 2017 according to CBC news, which is 974 more people than 2016, who have died because of the opioid crisis. If this nasty phenomenon is happening and almost all of the public is aware about it, including drug users, then what causes them to continue to put their life at risk and inject, snort, and ingest the drug into their body knowing the possibility they may die in the upcoming couple of hours?

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According to the U.S. National Library of Medicine, opioid addiction is a chronic long-lasting condition that is characterized by a powerful and compulsive urge to use an opioid drug. Without the use of the drug the abuser will feel muscle pain, anxiety, diarrhea, and cramping. These symptoms are so extreme that they will force the user to obtain the drug because without it, life will be miserable. Therefore, the abuser has no option but to ingest the drug in order to feel “normal”.

Image result for cartoon diagram of opioid receptors

Image Credit: https://www.yahoo.com/news/this-is-your-brain-on-opioids-194212388.html

Thomas R. Kosten and Tony P. George explain that 0pioids travel in the bloodstream and as soon as they enter the body they attach to little proteins in the blood called mu. We can imagine mu to be small magnets floating in our blood; once the drug attaches to mu it becomes activated triggering our brain to produce feelings of pleasure. Most often we get these same feelings of pleasure through normal day-to-day activities such as eating and sex. There is a portion of our brain that remembers the pleasurable feelings and associates them with the circumstances and the environment that we experienced them. These memories are called conditioned associations, when we experience the same conditions such as re-encountering the same people, places, or things we want the drug to make up the missing puzzle piece.

Opioid withdrawal occurs because gradually overtime opioid receptors such as mu stop responding to smaller concentrations of natural hormones. There is an area of the brain called locus ceruleus (LC). The LC controls the normal day-to-day functions such as breathing, blood pressure, and wakefulness. When the opioid drug attaches to mu, it causes the LC to stop working, which results in low blood pressure, drowsiness, and slowed respiration. However, the LC is smart! It responds by increasing its power and returning the person to a normal state by fixing all the factors mentioned above. Therefore, when opioids are present the person feels normal however when opioids are not present, the LC is still working at its strongest power and the opioid-mu complex is not available to counteract it. This causes jitters, anxiety, muscle cramps, and diarrhea – which are the symptoms of withdrawal.

Therefore opioid addiction is understood as a medical disorder, similar to heart disease, diabetes, or mental illnesses. Next time you read about the opioid crisis in B.C. never assume that people can easily stop taking their drug. They need medical help in order to stop, and until the individuals suffering don’t get the help they need they will be living in danger.

Jasleen Jassal

 

 

 

 

A DNA Tool to Predict the Future

A common fear among parents is the risk of their children being diagnosed with serious illnesses such as heart disease and cancer. Fortunately, a DNA tool created by Michigan State University has been shown to accurately predict people’s height and bone density. This tool could also potentially assess people’s risk for illnesses such as heart disease and cancer.

Figure1. A new tool, created by Michigan State University, capable of predicting height. Used with permission, © 2018 Science Daily.

The Potential:

This amazing tool uses an algorithm to predict human traits including height, bone density and even the level of education an individual might achieve, entirely based on one’s genome. Lead investigator of the study Stephen Hsu mentions, “This is only the beginning.” There are plans in motion to apply this tool to predict more relevant matters like heart disease, diabetes and breast cancer. These are major diseases that impact a large amount of people. Heart disease, for instance, is the second leading cause of death in Canada. About 1 in 12 Canadian adults live with diagnosed heart disease alone! Hence, this tool could greatly impact and advance healthcare. Doctors would be able to step in during the early stages of illnesses to prevent or delay them!

Creating and Testing:

Stephen Hsu and his team’s research used machine learning, where a computer learns from data, to analyze the entire genome of around 500 thousand adults in the United Kingdom. The genome’s obtained from the United Kingdom Biobank, an international resource for health information, were used to put the algorithm to work. The algorithm evaluated each individual’s DNA and taught the computer to identify unique differences. “The algorithm looks at the genetic makeup and height of each person, learns from each person, and ultimately produces a predictor that can determine how tall they are from their genome alone,” said Hsu.

The computer was able to accurately predict everyone’s height within about an inch. However, predictions for bone density and educational achievement were not as accurate. Nevertheless, they were accurate enough to identify outliers in the population who were at risk of having problems in school and low bone density, which is associated with osteoporosis.

Future Plans:

Hsu’s team plans to continue to improve the algorithm by obtaining larger, more diverse data sets for the computer to learn. This would increase the algorithm’s capability to understand and interpret the combination of genes responsible for risks against specific diseases.

With increasing technology, the bright future of healthcare is considerably closer than originally believed. “What was once thought to be 5 to 10 years out, is now a lot closer when it comes to this type of work,” Hsu mentioned.

Figure 2. Collecting DNA using mouth swabs. Used with permission, © 2015 InfoLaw.

It is quite possible in the near future that a simple swab of the cheek could save families millions of dollars in treatment costs and more importantly, the lives of their children through early interventions of genetically based diseases.

Trevor Shen

The Impact of Stress on Mental and Physical Health

“Life stressful events” – such as the death of a close friend or family member, going to a new school, or taking on a mortgage can increase the chances of getting sick. In this study, written by Cohen and colleagues a correlation between stressful life events and how it can increase the risk of developing a disease/illness like cardiovascular diseases, infectious diseases, cancer, and depression. Many different psychologists argue as to what events specifically are “stressful events” because everyone can interpret stress differently.

Some examples of different events that people consider stressful. The impact of all these events varies between different people. (Credit: American Institute of Stress/Knowable Magazine)

Will you ALWAYS get sick or depressed because of stress?

Different kinds of stressful life events can lead to negative health effects varying from a cold to major depression to a heart attack. One study looked at how stress influenced an individual’s ability to fight off the common cold called the rhinovirus. Those that were exposed to more stress events were more likely to get sick, however, half of them did not get sick. Yes, just being stressed does not necessarily mean that you will always get sick or depressed. Cohen, Murphy, and Prather explained that”most people who experience stressful events do not get sick” because some are resilient than others.

Results of fighting off a cold with and without stress. (Credit: S. Cohen et al./Health Psychology 1998/Knowable Magazine)

Having a Negative Attitude

Having a negative attitude, in general, tends to result in depression. Studies show that striking a person’s “core identity”  such as losing a job or conflict with close friends can raise the risk of depression. “Depression and heart disease are frequently associated with stressful events,”  said Tom Siegfried. Stress can discourage exercising and eating healthy. Stress can also lead to bad habits such as drinking and smoking.

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This video highlights the negative impacts of mental health in general. (Credit: Healthwatch Peterborough)

University Stress

University can be very stressful, so take care of yourself and remember to take study breaks in between long study periods! According to a 2008 mental health study by the Associated Press and mtvU, eight in 10 college students say they have experienced stress in their daily lives over the past three months in August 2018. “This was an increase of 20% from a survey five years ago.” from the website of The American Institute of Stress. Self-care is really important for your mental health and physical health.

A few things you can do when taking a break from studying. (Credit: Flickr)

Written by: Chelsey Chow