In the second millennium BC, ancient Egyptians described hysteria for the first time. The term 'hysteria' was coined by Hippocrates from the Greek adjective hysterikos, which means "from the womb." He blamed hysteria on the womb wandering within the female body, which caused anxiety, tremors, convulsions, paralysis, and a sense of suffocation. Hysteria was first associated with the brain in the 18th century, rather than the uterus. According to Sigmund Freud, it is caused by trauma and can affect both sexes. The DSM did not remove the concept of hysterical neurosis until 1980. Dissociative disorders are now thought to cause hysterical symptoms.

You may have noticed that women take more risks than men, and there is a scientific reason for this. Women have a larger anterior cingulate cortex than men, which is the part of the brain that weighs options when making a decision. Some argue that this was evolution's way of making women better caregivers and saving the "tribe" when it came to gathering food and establishing social structures.

Now, before you start freaking out, please hear us out! Sedentism is encouraged in today's environment. After all, we sit during our commutes, to eat, to watch TV, to work, to socialise with our friends, and so on. It turns out that even if you exercise regularly, it won't keep you safe from the risks of the "office lifestyle."

Granted, everyone dislikes certain colours, but is it really possible to be afraid of a specific colour? Apparently, yes. Chromophobia, also known as Chromatophobia, is an irrational fear or aversion to certain colours. Fortunately, chromophobia is an extremely rare diagnosis that is caused by a conditioned response or a previous negative experience.

In the 13th century, Pope Gregory IV waged war against cats. He said that black cats were Satan's tools. He commanded the annihilation of these felines throughout Europe as a result of this notion. This strategy, however, backfired, resulting in a rise in the number of plague-carrying rats.

If you're using romantic whispers to impress a potential partner, make sure to speak into his or her left ear. An MITCogNet study discovered that when emotion stimuli were delivered to the left ear, recall accuracy was more than 6% higher than when the same stimuli were delivered to the right ear.

You might have already noticed that every picture of iPhones on any advertisement has the time set at 9:41. But why is that? There is a cool story behind this. When Steve Jobs announced the first iPhone, the local time was 9:42 at that time in San Francisco, California. They knew that they will unveil the iPhone at 9:42 and set the time to 9:42 in the slideshow as well.

However, when the iPad was released, they announced it at 9:41. Since then, this is still in effect as of yet. So, whenever you see an iPhone in any advertisement, you will see the time is set at 9:41. And, it is not a coincidence at all. Now you know the story behind this as well.

On Mondays, the chance of suffering a heart attack rises by 20% for men and 15% for women. It's most likely due to the stress of having to return to work. However, scientists caution that alcohol drank over the weekend can potentially be a cause of a heart attack.

When you burp on Earth, gravity keeps the solids and liquids from the food you just ate at bay, allowing only the gas to leave your mouth. Because the gas cannot separate from the liquids and particles in the absence of gravity, burping effectively becomes vomit.

When Chaim Weizmann, Israel's first president, died in 1952, the Prime Minister invited Einstein to fill the (mostly ceremonial) office. The scientist said no, writing: "I am extremely affected by our State of Israel's offer, and I am both heartbroken and humiliated that I cannot accept it. I've spent my whole life dealing with objective issues, therefore I lack both the natural ability and the expertise to deal with people and carry out official tasks."

Do you consider all of your decisions, weighing all of your options and calculating the impact of each outcome? You may believe you are, but you are incorrect. The majority of your decisions are made subconsciously because your conscious mind would be overwhelmed with information and you would likely become mentally frozen. This is because your brain receives over 11 million bits of information every second, and there simply isn't enough "brainpower" to process it all consciously.

Men have selective hearing, it's a fact! They can only listen to their female partners for 6 minutes, but this time is more than doubled to 15 minutes when they talk to their male friends. Before you start blaming men for their lack of attention, keep in mind that women pay more attention to conversations with their friends than to conversations with their romantic partners.

Your brain is working on problem solving and learning skills while you sleep. If you're learning a new skill or studying new information, getting enough sleep and having dreams can help you learn faster.

It doesn't seem to matter what others say about a new lover—in our eyes, he or she is always ideal. This blindness is essential for us to progress in our relationship. It is frequently required to progress to the "attachment stage," as scientists refer to it so that they can stay in love long enough to produce and raise children; in other words, to populate the globe.

Robin Dunbar, a psychologist and the director of Oxford University's Social and Evolutionary Neuroscience research department, believes that every guy should spend at least two hours a week with 4-5 buddies. They can use this time any way they choose, from sports to going to bars. According to Dunbar, guys with faithful friends are less likely to be sad and have a better immune system.

In terms of the most educated population, Ukraine ranks fourth in the world. 99.4% of Ukrainians aged 15 and up can read and write. 70% of adult Ukrainians have a secondary or higher level of education. Even Ukraine's current heavyweight champions, Vitali and Wladimir, have doctorates.

A girl's brain is busy developing fine motor skills, verbal skills, and social skills in her first five years of life, all of which are highly valued by parents and teachers. Meanwhile, a boy's brain is hard at work developing gross motor, spatial, and visual skills. All of these abilities are useful for hunting. As a result, when it comes to learning and fitting in, boys frequently start school at a distinct disadvantage.

There is a lot of evidence that following a pattern for 66 days will make it habitual. If you want to be better at cleaning your house or going to the gym, make a concerted effort to do so for 66 days, after which it will become a habit and be easier to maintain (this also works for breaking habits).

Dresses were worn by men from many cultures around the world. The Scottish kilt, for example, and the toga worn by the ancient Greeks were all examples of menswear. Dresses were only later appropriated by women, and men stopped wearing them.

Researchers at Arizona State University made the ground-breaking discovery that the ability to see red in all its glory is frequently gender-dependent. There is a gene that allows people to see and interpret red and its related colours such as cardinal, maroon, crimson, and so on, and that gene is linked to the x-chromosome. Because women are born with two x chromosomes, they have a better ability to see the entire red spectrum, whereas men, with a single x chromosome, aren't necessarily equipped to tell the difference between red and, say, cardinal.

Wilbur and Orville Wright, popularly known as the Wright Brothers, are famed for inventing the aeroplane, which may lead you to assume they were a well-educated couple, however none of them graduated from college. The discovery gained the brothers fame and money, and thankfully for them, they did not live to become one of those innovators who regretted their creations.

Though concluding definitively that colour affects a person's psyche has proven difficult, there have been a plethora of studies — some official, some not so official — that have come close. These investigations date back to the 1930s, when neurologist Kurt Goldstein began experimenting with colour and appearance. Goldstein discovered, for example, that people automatically assume red objects are heavier, while green objects are lighter.

Boys, more than girls, are more likely than girls to learn many lessons through experience rather than being told. This can make parenting them difficult, especially if you don't enjoy taking risks yourself. The most difficult challenge may be keeping them safe, so some risks must be avoided. It can also be difficult to be a support person as a parent when the lessons that boys learn bring hardship and tears.

People tend to seek out information that confirms their existing beliefs while ignoring information that contradicts their existing beliefs. This is referred to as confirmation of expectations. It contributes significantly to confirmation bias, a type of cognitive bias. This desire for confirmation causes us to avoid information that challenges our worldview.