Norwegian scientists conducted an experiment on college students, giving one set of students printed text sheets and asking the second group to read the same content on a computer screen in PDF format. It turns out that pupils retain knowledge better when it is printed on paper. It's yet another win for printed books versus digital gadgets.

Hair can tell everything about a person and hence is used by forensic experts. The hair can tell everything in a person's bloodstream, such as medicines, drugs, vitamins, minerals, and so on. The only thing that cannot be identified from the hair of a person is its gender. Isn't this interesting?

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.

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.

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.

Please pass the deodorant: According to the International Hyperhidrosis Society, you have two to four million sweat glands all throughout your body. The majority of them are non-stinky and may be found on the soles of your feet, palms, forehead, and cheeks. Do you consider yourself to be the "sweaty" type?

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.

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."

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.

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.

The fear of falling asleep is known as somnophobia. Oneirophobia is the fear of having nightmares or having dreams. Clinomania is the irresistible desire to stay in bed all day, whereas dysania is the sensation of waking up and not wanting to get out of bed.

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!

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.

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.

Women, unlike males, require more sleep, according to Duke University researchers. It turns out that if women don't get enough sleep, their physical and mental capacities suffer more than men's. According to sleep researcher Michael Breus, women are more likely to go into depressed moods due to a lack of sleep, and they are more irritable in the morning.

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.

What do you mean? The chorda tympani joins the face nerves with the middle ear, and it is partly responsible for taste reception on the tip of your tongue! It turns out that experiencing a lot of inner-ear infections as a youngster might change your taste buds, making you favour energy-rich and fatty meals. A recent research even connected it to obesity!

People may try to convince you that long-distance relationships can't and won't work, but research shows otherwise. According to one study published in the Journal of Communication, long-distance relationships are not only as successful as regular ones, but they are also more effective in building trust and satisfaction between partners.

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.

The left hemisphere of the brain is said to control analytical and reasoning skills, while the right hemisphere controls artistic and creative thought. As a result, many people believe that creative writers are right-brain dominant. However, studies have revealed that this is not the case, and that many creative writers do not have a dominant hemisphere, but rather are more or less equally balanced between the two. Indeed, because both sides of the brain are always working together, there is very little evidence that there are truly dominant brain hemispheres.

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.

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!

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.

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!!

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.