The medical industry has developed countless methods and tools for diagnosing the myriad of illnesses that can befall us. This, as you might guess, includes cancer. But it took a research team five months to diagnose this specific cancer...

* Viewer discretion advised. This video includes discussion of mature topics and may be inappropriate for some audiences. Armed with bracing logic, wit and her "public-health nerd" glasses, Elizabeth Pisani reveals the myriad of...

In this moving talk, documentary photographer Kristen Ashburn shares unforgettable images of the human impact of AIDS in Africa.

Swallowing pills to get medication is a quick, painless and often not entirely effective way of treating disease. A potentially better way? Lasers. In this passionate talk, TED Fellow Patience Mthunzi explains her idea to use lasers to...

In the first video in our two part series on HIV and AIDS, we explain how scientists figured out what HIV is, when the infection morphs into AIDS, and where they think the virus originated.

The world is getting closer to achieving one of the most important public health goals of our time: eradicating HIV. And to do this, we won't even have to cure the disease. We simply have to stop HIV from being transmitted until...

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...

Paul Andersen explains how viruses reproduce using the lytic cycle. He also shows how viruses can pick up new genetic material and how retroviruses (like HIV) can enter into the lytic cycle. He also describes the lysogenic cycle and...

In sub-Saharan Africa, HIV infections are more prevalent and doctors scarcer than anywhere else in the world. With a lack of medical professionals, Mitchell Besser enlisted the help of his patients to create mothers2mothers -- an...

There’s still a lot of work to be done before HIV is cured, but this week scientists reported the second-ever case of full HIV remission in a patient.

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. Chapters View...

Many seahorse species have males with full-blown pregnancies. But in order to do this, their immune system is missing something kind of important.

Paul Andersen describes the important characteristics of viruses. He starts with a brief description of origin theories. He then describes the two characteristics of all viruses; genetic information and protein coats. He also...

A quarter of all prescription drugs in the U.S. come from substances that are found only in plants. In this episode of SciShow, we take a look at four of these talented plants who make our lives better.

SciShow News reports some promising new findings about the worldwide fight against HIV, including insights about how we can make the most of one of our newest weapons against HIV: circumcision.

There are some diseases, like Zika or malaria, that get a lot of media coverage. However, every year, millions of people are infected with diseases that are just as deadly that we never hear anything about.

Paul Andersen explains the importance of genetic variation within a population. He begins with a discussion of the devil facial tumor that is a form of cancer transferred between Tasmanian devils. He then explains how a decrease in...

Creating genetically modified people is no longer a science fiction fantasy; it's a likely future scenario. Biologist Paul Knoepfler estimates that within fifteen years, scientists could use the gene editing technology CRISPR to make...

'I went to 43 funerals that year': Tilda Swinton on the importance of AIDS awarenessCredit: BBC Radio 4

This program travels to Zambia and Papua New Guinea to explore the anti-HIV fight in those countries, where poverty and lack of education amplify the crisis. Zambia-born Agetha Lloyd, an HIV therapist, describes her WHO-backed campaign...

Where there’s sex, there’s the possibility for STIs. In this episode of Crash Course Sex Ed, we unpack the most common sexually transmitted infections and how to prevent and treat them. Turns out, sexual responsibility is a lot easier...

Howcast - Learn to recognize the symptoms of HIV from sexpert Jane Bogart in this Howcast video.

Howcast - Learn how and when HIV becomes AIDS from sexpert Jane Bogart in this Howcast video.

Howcast - Learn how to get HIV testing from sexpert Jane Bogart in this Howcast video.