Artist Leonardo da Vinci produced two of the most famous paintings in history, “The Last Supper” and the “Mona Lisa.” But he was also passionate about medical discoveries and military inventions, some of which were centuries ahead of their time. Walter Isaacson, author of bestselling biographies of Steve Jobs, Albert Einstein and Benjamin Franklin, has written a new book about da Vinci, and he talks with Dr. Jon LaPook about why this Renaissance Man’s mind and curiosity were so extraordinary.
4000 years ago, the ancient Sumerians made a surprising discovery: if they scraped the bark off a particular kind of tree and ate it, their pain disappeared. Little did they know that what they’d found was destined to influence the future course of medicine. Krishna Sudhir, of TED-Ed, traces the history of aspirin.
InformationComments Off on Bald Men Perceived As More Attractive
Being Bald May Actually Boosts Your Attractiveness… According to Science!
According to a new study, bald really is beautiful. Researchers at the University of Pennsylvania have released the results of a survey that found that men who have shed their hair are more attractive.
The study was composed of three major tests given to students on campus. Male and female students were asked to rate photos of men according to attractiveness, confidence, and dominance. Some of the photos also digitally removed hair from some of the pictures to show the same person with and without their locks.
According to the researchers, the bald men won out in all three categories. The study also says men who willingly ditch their hair are perceived as more appealing because they’ve gone against the traditional norms associated with hair and vitality.
“Choosing to dispense with one’s hair is arguably a form of nonverbal behavior, a form of expression which communicates information about the self otherwise difficult to observe,” researchers write.
‘‘Anyone can be confident with a full head of hair. But a confident bald man—there’s your diamond in the rough.’’ — Larry David
The findings also claim that bald men, being perceived as more dominant, will do better in business and economically overall. Based on their study, researchers at Penn also suggest that men beginning to lose their hair just let it happen.
“Instead of spending billions each year trying to reverse or cure their hair loss, the counter-intuitive prescription of this research to men experiencing male pattern baldness is to shave their heads.”
The Ocean is a deep and scary world that is completely removed from most of our lives. In this video I explore just how deep the ocean actually is while discussing some of the strange life down there… and other just plain weird and odd things about the ocean.
Most of us have dealt with acne during puberty, or maybe even after that. You probably wanted to pop or pick them in order to remove them, but don’t do that! Learn more about acne and learn how to get rid of it more appropriately!
Zits are annoying and they tend to pop up at the absolute worst time. Before you try to pop them, though, check out this video for some better ways to get rid of acne.
This video from SciShow explains how zits are formed when bacteria collect in the pores of your skin and create tiny infections. While popping a zit is an attractive short term solution, this can spread the infection to the surrounding area of your skin. That’s likely to make the overall problem worse.
Instead, the video suggests that acne treatments that prevent bacterial growth and lower inflammation. You can use over the counter topical treatments on your skin to help reduce acne overall. In severe cases of acne, you may want to look into prescription treatments.
InformationComments Off on 7 Things You Should Know About Bed Bugs
One in five Americans either has had bed bugs, or knows someone who has. And the problem isn’t going away. It’s actually getting a lot worse.
They’re tiny, resilient, and they want to suck your blood. Bed bugs are a serious issue that isn’t going away any time soon. Here’s what you need to know about the microscopic monsters.
As this video from the SciShow YouTube channel explains, bed bugs are one of the fastest growing pest problems in the developed world—and it’s getting worse. If you’re unfamiliar with bed bugs, or Cimex lectularius, they’re tiny, blood-feeding insects that have acquired a taste for us humans over thousands of years. In the video, you’ll learn that bed bugs can live just about anywhere in your home, stuffing bedding and mattresses in plastic bags to starve out bed bugs doesn’t work, and the most efficient way to kill a bunch of bed bugs is heat. Adults and eggs will die within 10 minutes if exposed to temperatures of 115 degrees Fahrenheit (but don’t go lighting your bed on fire.) Fortunately, bed bugs don’t seem to pass on disease like most other blood-feeding insects, so you can take some solace in that.
There are some things you can do to fight off bed bugs, like freezing blankets and linens for several weeks, or calling an exterminator. But the best thing you can do is try to prevent them. Seal up cracks and crevices around your home so they don’t have anywhere to hide, check hotel rooms for them so you don’t any home, and set out traps.
InformationComments Off on Why Does Skipping Coffee Give Me Headaches?
If you are a heavy coffee drinker and one day decide to cut back and stop drinking coffee entirely, chances are you’ll experience some pretty bad headaches. In this video, the folks from SciShow tell you exactly why this is happening.
I normally drink about ten cups of coffee per day but today I decided to cut back and haven’t had any caffeine but now my head hurts and I don’t know why do YOU know why!?