Defusing the Population Bomb

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Is overpopulation real? Is Earth filling up with too many humans? How many people can Earth hold, anyway? As our species approaches 8 billion, human overpopulation is a major concern for many people. How can we reduce poverty and our impact on the environment? Do we need a forced one-child policy or something? Maybe not, because when we look at the science and history, populations seem to control themselves. This week we look at all these questions and more.

READ MORE:

https://ourworldindata.org

https://www.sciencemag.org/site/special/population/

http://science.sciencemag.org/content/346/6206/234

https://www.scientificamerican.com/article/are-malthus-predicted-1798-food-shortages/

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Health & Medicine: Crash Course Sociology #42

Our final unit of Crash Course Sociology is medical sociology. Today we’ll explain what it is and get an overview of the role of society in our notions of health and disease.

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References:
Sociology by John J. Macionis, 15th edition (2014)

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Cognitive Complexity: Blind Spots | Morgan Glover | TEDxCSUS

Memories are essential pillars of our lives. Our memories and the lessons we glean from them enable us to carry out daily tasks like driving and eating, allow us to remember our own names, and even define who we are. Losing memories can not only disrupt daily functioning, but can have devastating effects on our self-esteem, social well-being and even self-identity. Can you imagine not remembering?
Morgan Glover is a 23-year-old passionate graduate of California State University, Sacramento. Her friends describe her as dedicated, vivacious, a feminist, an intellectual, and a positive role model personifying self-empowerment. She spends her free time loving cats, fighting for women’s rights, and crushing the stigma around mental health conditions. Morgan is currently searching for the perfect fit in graduate school and program in Neuroscience with a focus in memory, learning, and/or cognition. She someday hopes to aide in solving memory problems, both for herself, and for millions of others affected by the diseases. This talk was given at a TEDx event using the TED conference format but independently organized by a local community. Learn more at https://www.ted.com/tedx

Our treatment of HIV has advanced. Why hasn’t the stigma changed? | Arik Hartmann

The treatment of HIV has significantly advanced over the past three decades — why hasn’t our perception of people with the disease advanced along with it? After being diagnosed with HIV, Arik Hartmann chose to live transparently, being open about his status, in an effort to educate people. In this candid, personal talk, he shares what it’s like to live with HIV — and calls on us to dismiss our misconceptions about the disease.

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Healthcare: is it a right or a luxury? | Tarik Sammour | TEDxAdelaide

Is healthcare a right or a luxury? The answer each individual gives to that question depends largely on their previous experiences with medical care, and on their geographical background and personal philosophy. It is not as simple as it sounds. But the world is getting smaller, and it is imperative that we develop a shared understanding of what kind of healthcare system works best for society in general, and how to fund this effectively. In this talk, Tarik Sammour challenges the audience to think about these questions and engages them in a passionate debate, while putting his own personal spin on things as all good speakers do! Tarik Sammour is a surgeon at the Royal Adelaide Hospital and an Associate Professor at the University of Adelaide, specialising in advanced bowel cancer surgery, patient outcome centred research and robotics. Throughout his training, Tarik has been privileged to work in a wide variety of healthcare systems, from the smallest general hospital in rural New Zealand to one of the largest medical centres in the United States, giving him a unique first-hand insight into what works well for patients and what doesn’t. One of the reasons he eventually chose to settle in Adelaide was because he saw the city’s potential as a leader in healthcare delivery and innovation. With an ageing population and spiralling healthcare costs, he has some ideas to solve problems that are relevant to us all. This talk was given at a TEDx event using the TED conference format but independently organized by a local community. Learn more at https://www.ted.com/tedx

Preventive medicine 3.0 | Masayuki Teramoto | TEDxYouth@KamoGawa

The first preventive medicine was isolation, the next was information transmission. However, now a number of challenges still remain in preventive medicine for information transmission. So now the next new form of preventive medicine is urgently required. Osaka University School of Medicine 6th year
General Director of Inochi Mirai Project This talk was given at a TEDx event using the TED conference format but independently organized by a local community. Learn more at https://www.ted.com/tedx

On Emergencies

In which John discusses long-term solutions to long-term problems, “acute on chronic” emergencies, post-ebola healthcare in Sierra Leone, and other thoughts stemming from this story about Ophelia Dahl and Partners in Health: https://www.newyorker.com/magazine/2017/12/18/ophelia-dahls-national-health-service

Learn more about Partners in Health: https://www.pih.org/

And more about Sierra Leone and its health challenges from the World Health Organization: http://www.who.int/countries/sle/en/ UNAIDS http://www.unaids.org/en/regionscountries/countries/sierraleone and the BBC: http://www.bbc.com/news/world-africa-14094194

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Your Life Now Vs. In The Past

As you make you 2018 resolutions, we look to the past.
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Further Reading/References:
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2720273/
http://www.nytimes.com/2003/07/06/books/chapters/what-every-person-should-know-about-war.html
https://en.wikipedia.org/wiki/List_of_wars_by_death_toll
https://en.wikipedia.org/wiki/World_War_II_casualties
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2655037/
http://ageconsearch.umn.edu/bitstream/114326/2/Caillavet_France_570.pdf
https://en.wikipedia.org/wiki/Early_modern_France

2018 Natural Disasters Disease Uncertainty about the future severe drought food insecurity malnutrition science history ancient societies overweight vs. underweight black plague smallpox virus remedies spanish flu modern medicine vaccine SARS Ebola pre-colonization WWII war violence starvation 2018 resolutions new year new me new years resolutions

Bioprecipitation: How Bacteria Makes Snow

Raindrops and snowflakes generally start to form around something else in the air, like a speck of dust, but sometimes that something else is bacteria.

We’re conducting a survey of our viewers! If you have time, please give us feedback: https://www.surveymonkey.com/r/SciShowSurvey2017

Hosted by: Hank Green
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Dooblydoo thanks go to the following Patreon supporters: Kelly Landrum Jones, Sam Lutfi, Kevin Knupp, Nicholas Smith, Inerri, D.A. Noe, alexander wadsworth, سلطان الخليفي, Piya Shedden, KatieMarie Magnone, Scott Satovsky Jr, Bella Nash, Charles Southerland, Bader AlGhamdi, James Harshaw, Patrick Merrithew, Patrick D. Ashmore, Candy, Tim Curwick, charles george, Saul, Mark Terrio-Cameron, Viraansh Bhanushali, Kevin Bealer, Philippe von Bergen, Chris Peters, Justin Lentz
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Sources:

https://www.nasa.gov/audience/forstudents/k-4/stories/nasa-knows/what-are-clouds-k4.html
http://www.nature.com/news/2008/080228/full/news.2008.632.html
http://science.sciencemag.org/content/319/5867/1214
http://www.bbc.com/news/science-environment-13523502
http://www.montana.edu/news/15232/rocky-mountain-storms-lead-to-new-findings-about-hailstones
http://onlinelibrary.wiley.com/doi/10.1002/2014JD022004/abstract
https://www.livescience.com/14299-bacteria-create-rain-snow-hail.html
https://www.livescience.com/2333-earth-clouds-alive-bacteria.html
http://onlinelibrary.wiley.com/doi/10.1111/gcb.12447/abstract
http://www.sciencemag.org/news/2016/04/video-these-microbes-are-key-making-artificial-snow

Images:

http://www.thinkstockphotos.com/image/stock-photo-clouds-in-the-sky/128951584
https://en.wikipedia.org/wiki/File:Hagelkorn_mit_Anlagerungsschichten.jpg
https://svs.gsfc.nasa.gov/11685
https://commons.wikimedia.org/wiki/File:Pseudomonas_syringae_cultures.jpg

Why HIV Isn’t a Death Sentence Anymore

In the second video of our two-part series on HIV and AIDS, we look at the challenges that have kept scientists from developing a cure, and the treatments that have still managed to improve the outlook for those infected.

We’re conducting a survey of our viewers! If you have time, please give us feedback: https://www.surveymonkey.com/r/SciShowSurvey2017

Hosted by: Hank Green
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Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow
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Dooblydoo thanks go to the following Patreon supporters: Kelly Landrum Jones, Sam Lutfi, Kevin Knupp, Nicholas Smith, Inerri, D.A. Noe, alexander wadsworth, سلطان الخليفي, Piya Shedden, KatieMarie Magnone, Scott Satovsky Jr, Bella Nash, Charles Southerland, Bader AlGhamdi, James Harshaw, Patrick Merrithew, Patrick D. Ashmore, Candy, Tim Curwick, charles george, Saul, Mark Terrio-Cameron, Viraansh Bhanushali, Kevin Bealer, Philippe von Bergen, Chris Peters, Justin Lentz
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Sources:

https://www.avert.org/about-hiv-aids/cure
https://www.avert.org/professionals/hiv-science/searching-cure
https://www.avert.org/professionals/hiv-science/overview
https://aidsinfo.nih.gov/understanding-hiv-aids/infographics/25/fda-approval-of-hiv-medicines
https://www.cdc.gov/mmwr/preview/mmwrhtml/00001409.htm
https://www.cdc.gov/hiv/basics/whatishiv.html
http://www.stat.wisc.edu/~larget/Genetics629/hiv.pdf
https://www.cdc.gov/mmwr/preview/mmwrhtml/su6004a11.htm
http://www.ihv.org/Education–Training/General-HIV-AIDS-Information/AIDS-Acquired-Immune-Deficiency-Syndrome–/
https://www.ncbi.nlm.nih.gov/pubmed/2863631
https://www.ncbi.nlm.nih.gov/pubmed/3548350
http://time.com/4705809/first-aids-drug-azt/
https://www.britannica.com/science/AZT
http://americanhistory.si.edu/blog/2010/09/a-brief-history-of-azt.html
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2815149/
http://www.nytimes.com/1987/03/21/us/us-approves-drug-to-prolong-lives-of-aids-patients.html?pagewanted=all
http://www.nytimes.com/1989/08/28/opinion/azt-s-inhuman-cost.html
https://www.niaid.nih.gov/diseases-conditions/hivaids
http://www.merckmanuals.com/professional/infectious-diseases/human-immunodeficiency-virus-hiv/human-immunodeficiency-virus-hiv-infection
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4058441/
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4396582/
https://www.medscape.org/viewarticle/523119
https://www.fda.gov/ForPatients/Illness/HIVAIDS/History/ucm151079.htm
http://journals.plos.org/plosbiology/article?id=10.1371/journal.pbio.1002251
https://www.cdc.gov/hiv/risk/art/index.html
https://www.avert.org/professionals/hiv-programming/prevention/treatment-as-prevention
https://www.cdc.gov/hiv/risk/prep/index.html
http://www.aidsmap.com/Second-case-report-of-PrEP-failure-due-to-drug-resistant-virus/page/3093327/
https://www.nature.com/news/hopes-of-hiv-cure-in-boston-patients-dashed-1.14324
https://aidsinfo.nih.gov/understanding-hiv-aids/fact-sheets/19/93/what-is-a-latent-hiv-reservoir-
http://www.fredhutch.org/en/news/center-news/2015/02/timothy-ray-brown-doctor-who-cured-him.html
https://www.vox.com/science-and-health/2017/7/24/16019590/hiv-vaccine-international-aids-society-conference
http://www.the-scientist.com/?articles.view/articleNo/50018/title/Resistance-to-HIV-Engineered-Via-CRISPR/
http://www.nejm.org/doi/full/10.1056/NEJMoa0802905#t=articleTop
https://www.niaid.nih.gov/diseases-conditions/sustained-viral-remission-research
http://journals.plos.org/plosmedicine/article?id=10.1371/journal.pmed.1002417
http://www.cell.com/molecular-therapy-family/molecular-therapy/fulltext/S1525-0016(17)30213-7
https://ww2.kqed.org/futureofyou/2017/09/28/research-dampens-hopes-of-hiv-cure-shows-progress-on-remission-without-drugs/
https://bmcmedicine.biomedcentral.com/articles/10.1186/s12916-015-0517-y

Images:

https://en.wikipedia.org/wiki/File:TEV_protease_summary.png