Archive for the 'health' Category

How Do Airbags Work?

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Check to see if your car is part of the Takata airbag recall: https://www.nhtsa.gov/recalls

If you’re in a car accident, you want to be sure your airbags protect you. And they work because of chemistry, with some physics thrown in. This week on Reactions, we’re talking the science of airbags. And remember: Airbags are meant to work in conjunction with seatbelts, so buckle up!

[Pinned comment: In the aftermath of a crash, you might notice a puff of white powder and a funny smell. In older model cars, that’s cornstarch or talcum powder used to lubricate the bag itself, but in more recent vehicles, it’s the actual byproducts of the airbag reaction.]

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Credits:
Producer: Sean Parsons
Writer: Alexa Billow
Scientific Consultants: National Highway Traffic Safety Administration (NHTSA)

Sources:

http://www.chemistry.wustl.edu/~edudev/LabTutorials/CourseTutorials/bb/Airbags/151_T5_07_airbags.pdf
https://www.scientificamerican.com/article/how-do-air-bags-work/
https://www.thoughtco.com/history-of-airbags-1991232
http://web.bryant.edu/~ehu/h364proj/sprg_97/dirksen/airbags.html
https://www.consumeraffairs.com/news04/2006/airbags/airbags_invented.html
https://paleofuture.gizmodo.com/a-brief-history-of-air-bags-and-the-future-of-driverles-1634903213
https://www.nhtsa.gov/equipment/air-bags
https://www.quora.com/Why-do-airbags-smell
https://www.popsci.com/how-airbags-are-supposed-to-work#page-2
https://pubs.acs.org/doi/abs/10.1021/ed073p347?journalCode=jceda8
https://cecas.clemson.edu/cvel/auto/actuators/airbag.html

Ever wonder why dogs sniff each others’ butts? Or how Adderall works? Or whether it’s OK to pee in the pool? We’ve got you covered: Reactions a web series about the chemistry that surrounds you every day.

Produced by the American Chemical Society.

Here’s an inside tear down of the internal components of an airbag, and how it works to save you in an accident.

An airbag works on the principle of a rapidly expanding gas that fills a balloon of air to cushion the impact of the occupant’s head during a collision. The reactive compound in the inflator is sodium azide, which decomposes into nitrogen gas and sodium. This explosion fills the airbag within milliseconds, and the deflates allowing the driver to regain control of the vehicle.

The Takata airbag recall was issued to vehicles with defective airbag inflators that would inflate with too much force. This could cause shrapnel to explode into the occupant’s face and cause injury or death.

In this video, a Honda airbag is taken apart as a demonstration to show the internal components of the airbag, including the airbag cover, the airbag balloon, the horn switch, airbag inflator and tamper proof electrical connectors.

Warning: Never take apart an airbag that has not been exploded. Any static or electrical current can set off the unstable sodium azide compound, causing it to explode.

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The surprisingly dramatic role of nutrition in mental health | Julia Rucklidge | TEDxChristchurch

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NOTE FROM TED: Please consult with a mental health professional and do not look to this talk for medical advice as the intersection of mental health and nutrition is still an emerging field of study. We’ve flagged this talk for falling outside TEDx’s curatorial guidelines because it oversimplifies interpretations of legitimate studies. TEDx events are independently organized by volunteers. The guidelines we give TEDx organizers are described in more detail here: http://storage.ted.com/tedx/manuals/tedx_content_guidelines.pdf

This talk was given at a local TEDx event, produced independently of the TED Conferences. In this critically important talk, clinical psychologist Julia Rucklidge explores a range of scientific research, including her own, showing the significant role played by nutrition in mental health or illness.

Julia J Rucklidge, PhD is a Professor of Clinical Psychology in the Department of Psychology at the University of Canterbury, Christchurch, New Zealand. Originally from Toronto, she did her training in neurobiology (McGill) and Clinical Psychology (University of Calgary). Her interests in nutrition and mental illness grew out of her own research showing poor outcomes for children with significant psychiatric illness despite receiving conventional treatments for their conditions. For the last 6 years, she has been investigating the role of micronutrients in the expression of mental illness, specifically ADHD, Bipolar Disorder, anxiety and more recently, stress and PTSD associated with the Canterbury earthquakes.

About TEDx, x = independently organized event In the spirit of ideas worth spreading, TEDx is a program of local, self-organized events that bring people together to share a TED-like experience. At a TEDx event, TEDTalks video and live speakers combine to spark deep discussion and connection in a small group. These local, self-organized events are branded TEDx, where x = independently organized TED event. The TED Conference provides general guidance for the TEDx program, but individual TEDx events are self-organized.* (*Subject to certain rules and regulations)
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The shocking truth about your health | Lissa Rankin | TEDxFiDiWomen

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The shocking truth about your health | Lissa Rankin | TEDxFiDiWomen

Lissa Rankin, MD is an OB/GYN physician, author, keynote speaker, consultant to health care visionaries, professional artist, and founder of the women’s health and wellness community OwningPink.com. Discouraged by the broken, patriarchal health care system, she left her medical practice in 2007 only to realize that you can quit your job, but you can’t quit your calling. This epiphany launched her on a journey of discovery that led her to become a leader in the field of mind/body medicine, which she blogs about at OwningPink.com and is writing about in her third book Mind Over Medicine: Scientific Proof You Can Heal Yourself (Hay House, 2013).

She teaches both patients and health care professionals how to make the body ripe for miracles by healing the mind and being healthy in all aspects of life, not just by promoting healthy behaviors like good nutrition, exercise, and adequate sleep, but by encouraging health and authenticity in relationships, work, creative expression, spirituality, sexuality, finances, and living environment. She is leading a revolution to feminize how health care is received and delivered by encouraging collaboration, fostering self-healing, reconnecting health care and spirituality, empowering patients to tap into the mind’s power to heal the body, and encouraging women not to settle for being merely well, but to strive for living vital, joyful, authentic lives full of “mojo.”

When not spreading the word, she chills out, paints, does yoga, and hikes in Marin County, CA with her husband and daughter.

Event video by: http://repertoireproductions.com/

Brain Foods for Brain Health – Boost Brain Health with Good Eats

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Brain Foods for Brain Health - Boost Brain Health with Good Eats

Farm-to-fork meals reinvent hospital food: https://ucdavis.health/f2f

Dr. Liz Applegate’s presentation discusses specific foods and dietary supplements that may enhance brain health and transform diet to one that supports healthy aging and memory performance. Dr. Applegate is Director of Sports Nutrition and a Distinguished Lecturer at the University of California, Davis. Her educational focus is eating for optimal health and performance. She writes a column for Runner’s World, appears on national TV & radio and speaks to people of all ages about practical and science based approaches to optimizing oneself through diet.

This lecture is part of UC Davis Health System’s Alzheimer’s Disease Center 2016 Community Lecture Series sponsored by Sunrise Senior Living and Aegis Living. It was delivered live at the Lesher Center for the Arts in Walnut Creek, California on November 29, 2016.

Good Food is Good Medicine blog: https://health.ucdavis.edu/good-food/
Smart snacking during coronavirus quarantine – https://ucdavis.health/smartsnack
How to Eat Healthy as You Age: https://ucdavis.health/HealthyAging
Health Benefits of Tea: https://ucdavis.health/tea
Tips for Good Gut Health: https://ucdavis.health/GutHealth
UC Davis Health’s Alzheimer’s Disease Center: https://health.ucdavis.edu/alzheimers/
See the latest news from UC Davis Health: https://health.ucdavis.edu/newsroom

#brainhealth #eathealthy #nutrition #snacking
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