come, stay and let's talk. it's a good day to be alive
try recording yourself and watch it again.
if you haven’t been your best version,
you’ll notice all of your wrongdoings:
pride, selfishness, and ignorance.
that’s why we put the best effort every day.
to be not ashamed of yourself in the future;
to be able to say you did your best;
to look back and realized you tried your best
regardless of all the past mistakes you see.
so let’s give it all today
everyday is a new challenge.
6.12.2023
Have you felt a sense of calm and relaxation when you walk around a garden, a park, or a forest? Especially in urban areas, green spaces give a sense of peace in the middle of chaotic urban life. Today, we will explore the benefits of walking in nature.
Let’s first go over what we mean when we talk about nature. Compared to rural or suburban regions, urban areas often lack access to nature, such as trees, grass, and shrubs. In order to increase access to nature, local governments promote building infrastructure that supports community access. The types of such structures include:
If you are interested in looking up how much green space your neighborhood has, you can look up the Normalized Difference Vegetation Index, which captures the level of green space concentration in a region.
The National Institute on Aging cites a 2022 JAMA Network Open paper studying 13,000 middle-aged women between 2014 and 2016 by a team of researchers from Harvard University and Boston University who found that increasing residential space may be associated with cognitive benefits among middle-aged women. They found that women have higher scores on thinking speed, attention, and overall cognitive score, about 1.2 years younger.
Access to green space may benefit even those who are diagnosed with dementia. A 2020 mixed-review study suggests that there may be benefits for people with dementia to live in a community setting with access to green space and promote horticultural programs, such as green care farms and gardening. A 2018 UK study with 28 participants found that people with mid-late stage dementia experienced increasing mood improvement with increasing time spent in the garden up to 80 minutes.
More research could be funded to better understand the association between increased access to nature and cognitive health. A 2016 systematic review investigating the association between long-term green space exposure and cognition across the life course found a limited number of available studies, most of which were poor or fair quality. Perhaps this is a field that more researchers can investigate. Another 2019 study based on the Ginko Evaluation of Memory Study (GEMS) with 3048 participants found a moderate association between green space exposure and dementia progression among US adults aged over 75 years old.
Access to green space also appears to help young people, who may experience the benefit for a more extended period of their life. A 2017 systematic review of 12 articles studying the effect of green space and the mental well-being of children found that access to green space increases attention restoration, memory, self-discipline, and lower ADHD behaviors.
One reason walking in nature helps with cognitive health could be because the vegetation in greenspaces can capture both air and water pollution. The greenspaces may help improve cognitive health by capturing air pollution, which reduces cognitive function levels.
Another reason that spending time in nature helps cognitive function is that it reduces the risk of depression. Studies have found that spending time in nature reduces the rate of depression. Having depression was also found to be a risk factor for cognitive decline and dementia.
There are a couple theories as to what might be happening to our minds when we walk in nature. The Attention-Restoration Theory (ART) hypothesizes that urban environments often have high levels of stimulation that lead to attention fatigue. Some suggested that being in the natural environment can alleviate attention fatigue. Another theory, the Stress Reduction Theory (SRT), hypothesizes that exposure to natural environments reduces physiological and psychological stress, leading to positive emotions.
Study results appear to support both theories. A 2022 EEG study with 63 participants found that walking in nature reduced amygdala activation after the walk in nature compared to walking in an urban environment. Another 2022 EEG study with 42 participants found that even walking while watching 6 1-minute videos of green urban spaces produced more calm, positive emotions.
There could be ways to increase access to green spaces. Here are a few suggestions:
In this post, we explored types of green space, how green space gives emotional and cognitive benefits, what could be mechanism that works, and how we can increase access to green space. If you have more ideas that you would like to share on how to increase green space, please comment below! We hope this post has helped you understand the importance of exposure to green space and building more of them.
it’s like an eye sore,
those tough decisions to make.
I tend to avoid it more
when I can live without taking a stake
but the more I look away
the further I get away
from what matters the most
for what I care the most
so let’s get them done
and face another day.
6.11.2023
stay still. let the silence soak in.
once your mind get contaminated
it won’t be until next time you wake up
the silence will revisit you.
noise seeps in like a mist against the door.
even a slight guard down, and it will be in.
in clarity, we find insightfulness.
in obscurity, we find recklessness.
6.10.2023
Drinking alcohol is prevalent in most cultures. Some claim that liquor is a social lubricant, allowing people to bond. But many would also attest to feeling they couldn’t walk straight, talk without slurred speech, or remember what happened the day after drinking alcohol. In this post, we will explore the potential long-term adverse effects of drinking liquor.
Please note depending on where you live, there may be an age limit (e.g., 21 years old if you live in the United States) on when you can legally purchase and drink alcohol.
Liquor is an alcoholic drink often produced by distilling fermented grains, fruits, or vegetables. Common types of liquor include beer, wine, and hard liquor, such as whiskey.
The United States Centers for Disease Control and Prevention (CDC) recommends 1 or fewer drinks in a day for women and 2 or fewer drinks in a day for men. A “drink” standard drinking size in the United States contains 14 grams (0.6 ounces or 1.2 tablespoons). This is equivalent to:
The CDC defines binge drinking as drinking 4-5 or more drinks a day and heavy drinking as drinking 8-15 or more drinks per week. Binge drinking could lead to alcohol poisoning, a medical emergency from high blood alcohol levels because excessive drinking exceeds the body’s capacity to process alcohol.
Symptoms of alcohol intoxication include decreased judgment and control, slurred speech, reduced muscle coordination, vomiting, reduced consciousness and cognitive function, and coma.
Heavy drinking was found to be associated with an increased risk of dementia. A 2018 longitudinal study in the United Kingdom following people’s alcohol consumption level for 23 years suggests that those who drank more than 14 drinks a week had an increased risk of dementia.
A 2019 systematic scoping review conducted on articles published between 2000 and 2017 suggests that heavy alcohol use was associated with changes in brain structures, cognitive impairments, and increased risk of dementia. A 2023 systematic review in Europe also found a similar effect: moderate to high alcohol consumption was associated with an increased risk of cognitive impairment, memory loss, and risk of dementia.
Another study conducted in 2019 with 785 individuals from the Jackson Heart Sleep Study suggests that evening drinking alcohol can impair sleep quality, which may lead to a high likelihood of memory impairment and other cognitive functions.
Other effects of drinking alcohol include:
A moderate amount of drinking (1-2 drinks) was associated with a lower risk of dementia. Some studies suggest light drinking (drinking low alcohol content) can help with rehydration after a workout, but some studies produced evidence suggesting that it may impair muscle recovery.
In the early 2000s, discoveries were made that resveratrol, a chemical found in red wine, has an antioxidant property that may have an anti-aging effect in mice. However, the researchers also found that you would have to consume about 1000 bottles of wine in order to find a similar effect in humans.
We explored the effects of alcohol on our mind, body, and overall health. Drinking above the recommended amount of alcohol (1-2 drinks) was associated with an increased risk of cognitive decline. We hope this post has helped you learn some of the consequences of excessive drinking and help you have a healthy drinking life. Please drink (if you are legally allowed to) responsibly!
If you have an alcohol disorder or any other health concerns related to alcohol, please contact your physician or the SAMHSA (Substance Abuse and Mental Health Services Administration).
am I blaming others
for not spreading my arm
while curled up in a boulder
fearful of shame and harm?
am I blaming my past
for my current inconvenience
even though they passed
enough amount of penance?
why blame for what cannot be controlled?
why not have a laugh and go on a stroll?
so now, take a chance
for once, let us dance
6.9.2023
Have you ever had a sip of a coffee in the morning and felt a jolt of energy that immediately woke you up? Have you wondered if there could be any lasting effects of drinking coffee? Today, we will explore the cognitive effects of drinking coffee.
Coffee is made from seeds of Coffea arabica in either its raw, roasted, whole, or grounded form. While there are 70 species of coffee, only 3 are cultivated (Coffea arabica, Coffea canephora, and Coffea liberica).
Most coffees are made from roasted coffee. Raw coffee beans are added to loaders and then into a rotating drum heated to around 240 degrees. Most coffee is roasted to 3 levels: light, medium, and dark roast.
Once the coffee beans are roasted, they are grounded in various levels to suit the brewing method. Some of the most common brewing methods include pour-over, drip coffeemakers, French press, cold brew, and espresso. If you want to learn more about different brewing methods, you can explore a few recommendations, such as this one from Starbucks and another from Blue Bottle.
One of the key characteristics of coffee is its bitter taste. The coffee’s bitter taste is from the extracted coffee’s chlorogenic acid (CGA), the coffee’s main phenolic acid compound, broken down during roasting. The broken-down organic compound also contributes toward the browning of the coffee beans.
A 2021 study reports that CGA may lower blood cholesterol, triglyceride, and low-density lipoprotein. It also has antioxidant, antibacterial, and DNA protection effects because of its ability to neutralize free radicals that damage DNA and other cell structures. A 2020 study showed that CGA in coffee showed a protective effect against cognitive impairment and prevented the build-up of amyloid beta plaques in mice that were induced to have Alzheimer’s disease.
Of course, caffeine is also one of the main components of the coffee. Caffeine affects changes in the blood level of norepinephrine, dopamine, acetylcholine, serotonin, glutamate, and gamma-aminobutyric acid (GABA). Caffeine works by blocking adenosine receptors in phosphodiesterase enzymes in skeletal muscles and adipose tissues. This increases the breakdown of fats in the body, giving more muscle energy. This inhibition also increases the concentration of cyclic adenosine monophosphate (cAMP), which may increase epinephrine and dopamine. It also allows the heart and lungs to work faster.
In a 2022 cross-sectional study, theobromine and theophylline in coffee were associated with increased cognitive function, but the authors claim that more research is needed to strengthen their results. A 2017 mice study showed that theobromine and theophylline did not have a protective effect against cognitive decline in Alzheimer’s disease-modeled mice.
A 2013 paper reviewed articles published between 1990 and 2002 and found coffee is associated with a reduction in the incidence of diabetes and liver disease. The authors also found coffee appears to have protective effects against Parkinson’s disease and osteoporosis. This study appears to be supported by a 2020 neuroimaging study that showed that whole coffee cherry extract administration to older adults can lead to structures of neurons involved in decision-making, attention, and memory.
What part of coffee might be contributing to this improvement in cognitive function? A 2018 Japanese study suggested that roasting coffee beans is a crucial part of its role in reducing beta-amyloid plaque in humans. A 2013 study suggested that it is not caffeine but something in the coffee that contributes to neuroprotective effects. For example, a 2018 study found that phenylindanes prevent the build-up of beta-amyloid and tau build-ups for those at risk of Alzheimer’s disease.
If you prefer to drink tea instead of coffee, you may still benefit from similar chemicals in tea that have similar effects. A 2005 study showed that age was positively associated with tea consumption but negatively associated with coffee preference. Teas also have flavonoids, which appear to have a beneficial effect on cognitive health.
This post explored coffee’s components and how those affect our cognitive health. We hope this post has helped you understand coffee’s effects on your health. If you have a favorite way of drinking your coffee, please feel free to share it in the comment section!
one day, I walked into a ramen shop.
a college student led me to a stall.
He told me a rule of the shop:
once I’m done with the bowl, stand tall,
and shout out a dream of mine to everyone.
it was then I noticed a smile on each patron.
the bowl was greesy and salty,
yet I slurped away readily,
racing to the end of my bowl.
once I saw the bottom of my bowl, I stool tall,
and everyone looked up from their table
for once, a silence filled the air so tasteful
and I told them all, what my dreams are.
I recall my dry mouth, searching for words,
painting a picture of a perfect world,
and I wondered, if it will come true as I hoped.
6.8.2023
On June 7th, 2023, New Yorkers woke up to an unfamiliar scene: an orange-colored sky above New York City’s skyscrapers. New York Times reported that this was the historically worst air pollution in NYC. Other parts of the United States are experiencing similar air pollution due to the forest fires in Canada. Today, we will explore how exposure to air pollution could affect our cognitive health.
The current air pollution was caused by forest fires in British Columbia and Alberta in the west side of Canada and Quebec on the east side of Canada, moving south towards the United States. Half of the forest fires are caused by humans, while the other half are ignited by lightning strikes. According to the Wall Street Journal, May of 2023 was the hottest May in British Columbia and Alberta.
Other types of air pollution include smog (a form of air pollution when combusted fossil fuels react with sunlight), pollen/mold (exposed within a residential apartment/house), and asbestos.
Such wild forest fires produce gaseous pollutants (such as carbon monoxide), hazardous air pollutants (HAPs) (such as polycyclic aromatic hydrocarbons [PAHs]), water vapor, and particle pollution. Particle pollution is a term used to describe a mixture of solid and liquid droplets suspended in the air.
According to the United States Environmental Protection Agency, particles in particle pollution can be made up of different elements, such as biological materials (e.g., pollen and mold spores), acids (e.g., sulfuric acid), inorganic compounds (e.g., ammonium sulfate, ammonium nitrate, and sodium chloride), organic chemicals, soot, and metals.
You will often see in news articles notations such as PM10 or PM2.5. PM10 means particulate matter 10 micrometers or less in diameter, PM2.5 is particulate matter 2.5 micrometers or less in diameter. PM2.5 is generally described as fine particles. AQI is another acronym that is often used to indicate air pollution level. AQI stands for Air Quality Index. It was a range of values. For example, good air quality AQI ranges from 0 to 50, moderate air quality ranges between 51 and 100, and unhealthy for sensitive groups ranges between 101 and 150. There are more ranges with higher AQI values.
A 2014 study conducted by Columbia University researchers showed that when pregnant mothers are exposured to PAHs (Polycyclic Aromatic Hydrocarbons), the likelihood of the child developing Attention-deficit/hyperactivity disorder increased. A 2022 study in China showed similar results. Other types of disorders due to prenatal exposures to air pollution include lower birth weight, smaller brain size, autism spectrum disorder, and lower IQ score.
For older adults, exposure to air pollution may lead to cognitive decline, neurodegenerative diseases, and osteoporosis. Following about 4000 people from 1978 to 2018, a 2021 study found that higher 10-year average exposure to air pollution increases the risk of all types of dementia. Another study published in 2020 followed about 60 million people from 2000 to 2016 and found increased likelihood of having a Parkinson’s disease or Alzheimer’s disease among those who had a higher exposure to air pollution. A 2023 study found that postmenstrual women who were exposed to air pollution were more likely to have osteoporosis.
A 2020 study cites multiple studies to explain why air pollution might be associated with cognitive decline. The authors explain that proteins such as Tau and beta-amyloid deposits in the brain, which have been found to be associated with neurodegenerative diseases, are also linked to hypertension and other cardiovascular diseases. Cardiovascular diseases, in turn, are associated with stroke and cerebrovascular diseases. The author suggests that air pollutants such as nitrogen oxide and ozone may cause inflammation in the brain and cause cognitive impairment and neurodegenerative diseases. A 2014 study showed an association between exposure to nitrogen oxide and cognitive impairment among older adults in Los Angeles, California.
Exposure to air pollution may vary depending on the neighborhood socioeconomic status. A 2022 study that followed 12,000 participants for more than 50 years showed that living in a lower neighborhood socioeconomic status could increase the likelihood of cognitive impairment. A 2022 study with Chinese Health and Retirement Longitudinal Study between 2011 and 2015 found small effect of air pollution on cognitive decline.
If you would like to learn more about the effects of air pollution on your health, please feel free to visit the National Institute of Environmental Health Sciences’s web page.
In order to check the air quality in your area, you can utilize tools like the EPA’s air pollution monitor, AirNow. You can stay indoors, where the central air system has a higher quality air filters such as High Efficiency Particulate Air (HEPA) filter.
A 2020 study showed that consuming omega-3-rich foods can have protective effect against brain shrinkage among older women.
We looked into what are components of air pollution. We then explored what could be health effects of inhaling air pollutants. Although it is unfortunate that there is limited activities we can do to immediately reduce the air pollution, we can take steps to prevent deteriorative health effects. If you have health concerns, please contant your physicians for concrete evidence and detail of your care.
Disclaimer: This web post is for information purposes. If you have medical needs, please contact your primary care physician
I can’t recall when it all started
to enjoy biting another
and to be bitten.
All I did was to walk the walk
that was dark when it was dark
and walk the bright one when it was bright
yet there’s that lingering feeling
as if my hands are not clean before this meal.
언제부터인지는 기억이 나지 않는다.
서로를 물어 뜯고
물어 뜯기는걸 즐기게 되었는지는.
어두울 때는 어두운 길을 걷고
밝을 때는 밝은 길을 걸었을 뿐인데
걷고 난 후엔 무엇인가 바뀐 느낌이
식사전 손씻지 않은 찝찝함처럼 있다.
6.7.2023
Ralph with Coffee 
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