Darwin proposed that pupils expand during periods of increased attention and focus as early as the 1870s. This is true, as it occurs when looking at a desired or beloved object, even if it is only a picture or a video. Furthermore, people with dilated pupils appear more attractive.

At the very least, they may have a common ancestor. Danish researchers discovered that blue-eyed people from Scandinavia, Turkey, Jordan, and India all have same gene sequences for eye color after examining the DNA of blue-eyed people from those countries. They believe this characteristic originated with a single individual known as the "founder," whose DNA altered between 6,000 and 10,000 years ago. Previously, everyone had different hues of brown eyes.

The humoruos bone, which links the shoulder to the elbow, is known as the "funny bone." However, that is not the cause of the tingling feeling you get when you accidentally bump your elbow. It's caused by the humerus bone colliding with the ulnar nerve, which sends signals to the brain regarding sensations in the ring and pinky fingers.

Many psychological and social studies indicate that there is a significant pattern in how people choose people with whom to form romantic relationships. This pattern is explained by the Matching Hypothesis, which states that people are more attracted to those with whom they share a level of attractiveness, or who are equally socially desirable. Even if successful couples differ in physical attractiveness, one of them usually compensates for it with other socially desirable qualities.

You remember from elementary school that all humans are mostly made of water, but never more so than right after birth. According to NASA, newborn babies are 78 percent water, while adults are only 55 to 60 percent water.

According to a recent study, people who read are two and a half times less likely to be diagnosed with Alzheimer's later in life. Although this does not imply that reading will prevent the disease, it does demonstrate a slight link between reading and prevention.

With all that our brains have to deal with daily, it is understandable that they may want a well-deserved vacation from time to time. Blinking, thankfully, comes to the rescue around 15 to 20 times each minute. According to one research, that brief sleep period allows the brain to power down and take a mental break for a split second before resuming focus. As a result, experts believe that we blink more when performing a task that involves greater mental effort since our brain requires more rest the more we stress it.

We've all experienced the uplift and mood-altering effects that music can have on us, but its power doesn't end there. According to one research, a good song may physically speak to the heart. The heartbeat was discovered to synchronize with the musical rhythm. In fact, researchers discovered that crescendo choices caused a rise in blood pressure, pulse rate, and breathing. On the other hand, these measures decreased during decrescendos and quiet intervals.

Friendship is important for everyone, but it is especially important for women. According to a 2012 study at University College London's Department of Epidemiology and Public Health, family bonds are more important for men. Scientists studied 6,500 British men born in 1958 and discovered that marriage is the best thing for men's mental health because it strengthens their family ties. Women, on the other hand, tended to lose friends due to a lack of time when married. Female friendships can have a significant impact on the type of person these women are and will become. They also assist them in dealing with stress.

Nobody compares to women when it comes to expressing oneself. It turns out that this phenomenon has an anatomical explanation: women have bigger frontal and temporal regions of the cortex, a brain region considered to impact language abilities. Women also have more FOXP2, often known as the "language protein." This high protein intake allows the average woman to say 20,000 words per day, 13,000 more than the average guy.

For those who fantasise about being buried at sea, Eternal Reefs has devised a novel solution. It combines a person's cremated remains with concrete to form a "pearl" onto which loved ones can etch personal messages, handprints, or (eco-friendly) mementos. The pearl is then encased in a "reef ball" and dropped into the sea, where it provides a new habitat for fish and other sea life, promoting a healthy ecosystem. At work, the circle of life! Sign up for our daily newsletter to get more trivia delivered right to your inbox.

Singing can actually get rid of stress. As singing has psychological benefits because it has a normally positive effect on stress levels via the endocrine system, which is linked to our sense of emotional well-being. “Psychological benefits are also evident when people sing together as well as alone because of the increased sense of community, belonging, and shared endeavour,” observes Professor Graham Welch, Chair of Music Education at the Institute of Education at the University of London.

Yes, it has the ability to heal your mind, body, and soul. It can also help with a variety of health issues, but it can also be harmful. Yoga is a two-edged sword; if not practised correctly, you risk injuring yourself. But don't get too tangled up in it! You should be fine if you find a good enough teacher and exercise caution!

According to research, many people who are not predisposed to becoming overweight perform “additional” motions over the course of their everyday lives, such as tapping their fingers, pacing in circles while chatting, and so on. Even this seemingly insignificant physical exercise aids the body in burning up to 350 additional calories each day. This implies that simply tapping your fingers can help you lose up to 30 pounds every year.

Water also changes the hydrogen bonds in our hair, making it flatter after a shower. This could explain why some women dislike humidity: the water in the air changes the silkiness and structure of the hair, causing some hair to become frizzy or puffy.

Do you prefer falling asleep in a foetal position, flat on your back, or sprawled out on your stomach? There could be more to how you sleep than just what is comfortable for you. Sleep experts have discovered a link between a person's preferred nightly position and their personality, according to The Telegraph (via Dreams.co.uk). For example, Chris Idzikowski, director of the Sleep Assessment and Advisory Service, explained that people who sleep in the foetal position "may appear tough but are actually sensitive souls right to their core."

Don’t worry if you accidentally swallow a razor blade. The human body is far more competent than you may believe. Acids are graded on a range of 0 to 14; the lower the pH, the stronger the acid. The pH of human stomach acid is 1.0 to 2.0, showing that it is powerful. Scientists discovered that the “thickened back of a single-edged blade” disintegrated after two hours of immersion in stomach acid in research.

It's very likely that you have eyelash mites, depending on your age. These microscopic organisms feed on dead skin cells and the natural oil (sebum) produced by human hair follicles. They are usually harmless, though a small percentage of people may develop an allergic reaction to them. Eyelash mites typically grow to a third of a millimetre in length and are nearly transparent, making them difficult to see with the naked eye. However, if you examine an eyelash or brow hair under a microscope, you may find them, as they spend the majority of their time at the base of the hair, where it meets the skin. They are present in approximately half of the population, with the proportion increasing with age.

We can't completely comprehend the strength of our own vision since even on level terrain, we're constrained by the skyline. The maximum distance at which the experiment is unaffected by Earth's form is just approximately 3.1 miles. In truth, a person can see considerably farther: if the world were flat, we would be able to see a flame at a distance of 27 miles in absolute darkness.

Have you ever thought that a tongue can have 2,000 to 4,000 taste buds? But it does have! The sensory cells are responsible for how a person perceives taste. Moreover, about one-quarter population is believed to have the best sense of taste and are called 'supertasters.' Another quarter is considered 'non-tasters,' who can taste foods but are less sensitive and cannot detect the bitter taste PROP.

Let's use a mental image to put this into context. If each strand of your hair can support 100g, and most people have 100 000 to 150 000 strands of hair on their scalp, your entire head can support the weight of two elephants - wow!!

We are a part of the cosmos, and scientific study backs up this claim. Aside from hydrogen, which is big bang dust, all other elements in our bodies are made of stardust. After completing the math, this would imply that 97 percent of our bodies are made out of stardust.

If you suffer from chronic headaches and have tried everything to relieve the pain, love could be the secret solution you've been looking for. When researchers at Stanford University School of Medicine administered a nasal spray containing oxytocin, or the "love hormone," to subjects suffering from chronic headaches, they discovered that 50 percent of participants reported their headache pain was cut in half after four hours, with an additional 27 percent reporting no pain at all during the same timeframe.

Adults who read on a regular basis are more likely to participate in charity and volunteer work, accroding to the studies. Perhaps the slogan "Make love not war"must be replaced with "Read fiction, not media". Although media is frequently fiction, it can be perplexing.

There are many things going on in our bodies over which we have no control. For example, most of us cannot control the size of our pupils unless we change the amount of light that enters our eyes. Researchers observed a man who can apparently change the size of his pupil on command in a study published in the International Journal of Psychophysiology in 2021. Currently, he is the only person known to be capable of doing so—though you could give it a shot if you wanted!