The vital reason these medical professionals want to teach you how to use a tourniquet.
On Oct. 1, 2017, in Las Vegas, 59 people were killed and over 500 more were injured in a mass shooting. It was devastating, but that didn't stop people from trying to help.
"People were calling nonstop to our ER, and I'm sure every other ER, asking if they could show up and donate blood," recalls Carolyn Smith, an ER trauma nurse at Dignity Health in Henderson, Nevada. "People were showing up at the door to donate blood at 2 in the morning."

Smith has been a first responder on the scene at many disasters, both natural and human-caused. One thing she's noticed is that there are often countless people who want to offer their assistance. This was especially apparent in Houston after Hurricane Harvey.
"It was a very humbling experience to see people, not only in Houston, but from all over the state, coming to help no matter what color, what race, what religion, what tax bracket," she recalls.
Obviously giving blood after one of these tragedies is helpful, but what about in the immediate aftermath of something like a shooting? What can you do if someone is actually bleeding out in front of you?
It's easy to feel helpless in the presence of such a situation, but it's in those precise moments that you can be the most helpful.
There are simple steps you can take to try to save someone's life if they're bleeding uncontrollably. They just require some know-how.
This graphic comes from a program called "Stop the Bleed," which was launched after the Sandy Hook shooting in 2012. It's designed to teach people the basic skills needed to stop a serious bleed from becoming life-threatening.
"They found that there were a significant number of what we call 'preventable deaths' [at Sandy Hook]," explains Dr. Sean Dort, a surgeon at Dignity Health. "If somebody knew the skills we're teaching, they would've been able to save lives."
The free Stop the Bleed program offers explicit guides to help prepare civilians to act in a situation where someone is bleeding profusely. You can also access free bleeding control classes in every state, where trained professionals teach you how to properly put on a tourniquet and pack a wound.
Teachers regularly oversee classes at capacity, which makes sense given that 2017 saw more mass shootings than any other year in modern U.S. history. Gun-shot wounds have become far too commonplace, and people seem to be tired of feeling helpless in the face of them.
A woman putting a tourniquet on a practice dummy. Photo via Dignity Health.
Medical professionals like Smith and Dort hope this impulse to be prepared will be a trend that continues.
"We need to embed [bleeding control] into the American subconscious the way CPR is," says Dort.
If bleeding control was taught, alongside CPR, in schools across the country, kids would head into adulthood armed with two vital sets of lifesaving skills. As a result, future mass shootings and other catastrophic events may not be nearly so devastating.
The more people on the scene equipped to stop bleeding, the better chance victims have of surviving until medical professionals can get to them.
It could be the difference between giving over to panic and turning a potentially bleak situation around.
For more information on how to stop bleeding, check out the video below:



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An Irish woman went to the doctor for a routine eye exam. She left with bright neon green eyes.
It's not easy seeing green.
Did she get superpowers?
Going to the eye doctor can be a hassle and a pain. It's not just the routine issues and inconveniences that come along when making a doctor appointment, but sometimes the various devices being used to check your eyes' health feel invasive and uncomfortable. But at least at the end of the appointment, most of us don't look like we're turning into The Incredible Hulk. That wasn't the case for one Irish woman.
Photographer Margerita B. Wargola was just going in for a routine eye exam at the hospital but ended up leaving with her eyes a shocking, bright neon green.
At the doctor's office, the nurse practitioner was prepping Wargola for a test with a machine that Wargola had experienced before. Before the test started, Wargola presumed the nurse had dropped some saline into her eyes, as they were feeling dry. After she blinked, everything went yellow.
Wargola and the nurse initially panicked. Neither knew what was going on as Wargola suddenly had yellow vision and radioactive-looking green eyes. After the initial shock, both realized the issue: the nurse forgot to ask Wargola to remove her contact lenses before putting contrast drops in her eyes for the exam. Wargola and the nurse quickly removed the lenses from her eyes and washed them thoroughly with saline. Fortunately, Wargola's eyes were unharmed. Unfortunately, her contacts were permanently stained and she didn't bring a spare pair.
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Since she has poor vision, Wargola was forced to drive herself home after the eye exam wearing the neon-green contact lenses that make her look like a member of the Green Lantern Corps. She couldn't help but laugh at her predicament and recorded a video explaining it all on social media. Since then, her video has sparked a couple Reddit threads and collected a bunch of comments on Instagram:
“But the REAL question is: do you now have X-Ray vision?”
“You can just say you're a superhero.”
“I would make a few stops on the way home just to freak some people out!”
“I would have lived it up! Grab a coffee, do grocery shopping, walk around a shopping center.”
“This one would pair well with that girl who ate something with turmeric with her invisalign on and walked around Paris smiling at people with seemingly BRIGHT YELLOW TEETH.”
“I would save those for fancy special occasions! WOW!”
“Every time I'd stop I'd turn slowly and stare at the person in the car next to me.”
“Keep them. Tell people what to do. They’ll do your bidding.”
In a follow-up Instagram video, Wargola showed her followers that she was safe at home with normal eyes, showing that the damaged contact lenses were so stained that they turned the saline solution in her contacts case into a bright Gatorade yellow. She wasn't mad at the nurse and, in fact, plans on keeping the lenses to wear on St. Patrick's Day or some other special occasion.
While no harm was done and a good laugh was had, it's still best for doctors, nurses, and patients alike to double-check and ask or tell if contact lenses are being worn before each eye test. If not, there might be more than ultra-green eyes to worry about.