Happy First Day of Spring, Tumblr!
What better way to celebrate than to **ACHOO!!**….wait, what were we saying?
Ah, spring! Grass growing, flowers blooming, trees growing new leaves, but if you get allergies, this explosion of new life probably inspires more dread than joy.
Step outside, and within minutes, you’re sneezing and congested. Your nose is running, your eyes are swollen and watery, your throat is itchy. For you and millions of others, it’s seasonal allergy time. So what’s behind this onslaught of mucus?
The answer lies within you. It’s your immune system. Seasonal allergies, also called hay fever, or allergic rhinitis, are a hypersensitive immune response to something that’s not actually harmful. Pollen from trees and grass, and mold spores from tiny fungi find their way into your mucous membranes and your body attacks these innocuous travelers the same way it would infectious bacteria.
The immune system has a memory. When a foreign substance gets tagged as threatening, white blood cells produce customized antibodies that will recognize the offender the next time around. They then promptly recruit the body’s defense team. But sometimes, the immune system accidentally discriminates against harmless substances, like pollen. When it wafts in again, antibodies on the surface of white blood cells recognize it and latch on.
This triggers the cell to release inflammatory chemicals, like histamine, which stimulate nerve cells, and cause blood vessels in the mucous membranes to swell and leak fluid. In other words, itchiness, sneezing, congestion, and a runny nose.
Allergies usually, but not always, show up for the first time during childhood. But why do some people get allergies and others don’t? Allergies tend to run in families, so genetics may be one culprit. In fact, errors in a gene that helps regulate the immune system are associated with higher rates of allergies. The environment you grow up in matters, too. Being exposed to an allergen as a baby makes you less likely to actually develop an allergy to it. People who grow up on farms, in big families, and in the developing world also tend to have fewer allergies, although there are plenty of exceptions, partly thanks to genetics. One theory is that as children, they encounter more of the microbes and parasites that co-evolved with traditional hunter-gatherer societies.
Called the hygiene hypothesis, the idea is that when the immune system isn’t exposed to the familiar cast of microbes, it’ll keep itself busy mounting defenses against harmless substances, like pollen. Another theory is that an immune system toughened up by a barrage of pathogens is less likely to overreact to allergens. Pollen is a common offender, just because we encounter so much of it, but there’s a long list of substances: dust, animal dander, insect venom, medications, certain foods, that can send your immune system into overdrive. Some of these reactions can be scary. An allergy can develop into full-blown anaphylaxis, which typically brings on severe swelling, shortness of breath, and very low blood pressure. It can be deadly.
But as we who suffer from seasonal allergies know, even non-life threatening allergy symptoms can make you miserable. So what can you do about it? Medications can help reduce the symptoms. The most common ones keep histamines from binding to your cells. These antihistamines stop the inflammation response. Steroids can help dial down the immune system. Another more permanent option is immunotherapy. Deliberate, controlled exposure to gradually increasing amounts of an allergen can teach the immune system that it isn’t dangerous after all.
Of course, you can always just wait your seasonal allergies out. The spring pollen onslaught dwindles by mid-summer…just in time for ragweed season!
From the TED-Ed Lesson Why do people have seasonal allergies? - Eleanor Nelsen
Animation by TED-Ed
Yes it is here!
Mar 21, 2018 15:45
Google is a seasoned pro when it comes to developing reliable and modern technology that promotes inclusion amongst all users. We are living in an era where voice technology is becoming the norm as pivotal software to assist users with a variety of tasks. Digital voice assistants like Google’s Assistant, Apple’s Siri, and Amazon’s Alexa have quickly become a necessity through all tech mediums like smartphones, tablets, and home devices.
However, the Canadian Down Syndrome Society (CDSS) noticed that voice technology can lack the capability to correctly understand and transmit the voices of individuals with Down Syndrome. The way that individuals with Down Syndrome speak can be anomalous compared to those without, making the software difficult to use. Although, it is likely that individuals with a number of disabilities would benefit from the technology the most.
With this mission in mind, the CDSS set forth to find partnership in one of these major tech companies to not only recognize the issue at hand but join them in developing a solution that they have named Project Understood. Google was quick to jump on board and, with the society’s help, is testing its technology.
The initial test was to record 1,700 words and phrases spoken by individuals with Down Syndrome. From there, researchers could analyze whether or not Google’s voice technology was able to learn from the repetitive input of this voice data. They started with about nine volunteers.
After the initial testing, researched could confirm that Google’s voice technology was able to understand about 2 of 3 words spoken by individuals with Down Syndrome and that it has the capabilities to learn more with further data. Now the project just needs to secure more volunteers to feed Google’s voice technology more data.
Google and the CDSS are now seeking to collect about a thousand different voices of individuals with Down Syndrome to donate their time to developing this dynamic software. Not only will this help teach the system to learn to recognize speech from individuals with Down Syndrome, but it should also benefit other individuals with disabilities or atypical speech.
Google and the Canadian Down Syndrome Society are just a few of a number of companies that are working to build a more inclusive future for individuals with disabilities. Voice recognition, along with other smart technologies, has the capability to enhance the lives of all users, no matter their differences.
Originally published on RussEwell.co
Jan 02, 2020 13:47
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