Every year, tens of thousands of people have brain surgery without a single incision: there's no scalpel, no operating table, and the patient loses no blood. Instead, this procedure uses a machine that emits invisible beams of light at a...

Emotional abuse can be incredibly damaging, increasing a person's chances of developing depression and anxiety. But these behaviors can be subtle and difficult to spot, both from within and outside a relationship. It also often makes...

There's a lot about sleep that we don't understand, like why we even sleep in the first place, for example. Here are some amazing discoveries biologists have made while trying to solve the mystery of sleep.

How do sugar pills really interact with our bodies?

Satan, the beast crunching sinners' bones. Lucifer, the fallen angel. Mephistopheles, the trickster striking deals. These three divergent devils are all based on Satan of the Old Testament. But unlike any of these literary devils, the...

Has anyone ever told you, "Stand up straight!" or scolded you for slouching at a family dinner? Comments like that might be annoying"but they're not wrong. Your posture is the foundation for every movement your body makes and can...

Scientists know that anesthesia drugs are really good at knocking you out. What they don't know is how.

Let's get Heroic with Mike Rugnetta. This week on Crash Course World Mythology, we're talking about the Hero's Journey and the Monomyth, as described by Joseph Campbell. Campbell's theories about the shared qualities of human story...

Since your body is already pretty good at healing itself, does icing an injury actually help?

New ReviewAcross the world, humans have used insects in ways that defy belief. From venomous stings… to rituals that push the body past its limits. In today’s video, Mark uncovers the most painful insect rituals ever documented — including one he...

New ReviewDid we just find a slimy alien?! Mark and the crew are deep in the mudflats of Maine, searching for a massive Bloodworm for the Bite-Sting Index when they suddenly come face-to-face with the giant Milky Ribbon Worm!

New ReviewJoin Mark in the first-ever Brave Wilderness adventure to the Middle East in search of the rare Giant Arabian Death Stalker scorpion!

One of my fist big efforts on my blog was a ten point series on health care spending in the US. It also led to John doing this video - which is the fourth most popular vlogbrothers video EVER, - which pretty much led to Healthcare...

Opioid Abuse - Opioid drugs can be powerfully effective treatments for those in pain, but they can also be extremely dangerous. This episode explores how opioids can lead to dependence and addiction, and the effects that abuse have had...

Last week we talked about sleep. We talked about how much the average person needs, and how much they get. We also talked about how you can't just rely on "averages" to determine how much you need. Sleep in a personal thing, and we all...

When it comes to disparities research, I sometimes get angry at researchers that we're still spending so much time with studies pointing out disparities in medicine and so little time doing anything about them. I mean, is there anyone...

The History of Opioids - We will give a historical overview of people and opioids. We will look at when people first started using opioids, how they've changed over the years, and ways that they've been both amazingly positive as really...

A new simulation study published in the American Journal of Public Health shows that reducing opioids for short-term pain saves lives in the long run, even as it leaves some patients experiencing more pain. This is the fundamental...

Last week we covered CBD and mental health, finding that data to backup health claims are scarce and consumer CBD products are often sketchy. In this week’s episode on CBD and other health ailments, we find that many of the same caveats...

Stents are a popular treatment for angina pectoris, or chest pain usually resulting from narrowed arteries. Getting a stent is a serious procedure, with no small risk associated with it. And recent studies indicate that stents don't do...

Over a half-million women in the world get cervical cancer every year, with nearly 80 percent in developing countries. Human papilloma virus, or HPV, causes the cancer and is therefore among the worst instigators of female cancer...

Lurking in stagnant pools and muddy watering holes, the guinea worm easily gets into the food chain—and, because it is frighteningly invulnerable to stomach acids and the human immune system, it is next to impossible to remove from the...

Statement by brother of Paloma Shemirani whose inquest concludes she was 'adversely influenced' by motherCredit: PA

Watch as Mark takes on the first recorded sting from the dangerous Thai Bark Scorpion! Where will it land on the Brave Wilderness Bite-Sting Index? How will the sting compare to the likes of the Bullet Ant, Fire Worm, and the deadly...