science

The Science Behind Relationships; Humans Media explores the basis of our attraction, contempt, why we do what we do and to whom we do it.

The Ultimate Guide to Mindful Eating: Boost Your Health in 2023
In a world that moves dangerously fast, where interruptions proliferate and stretch frequently feels like the standard, the act of careful eating has arisen as an encouraging sign and a pathway to more noteworthy well being and prosperity. As we adventure into 2023, the significance of embracing careful eating couldn't possibly be more significant. It's an incredible asset to feed our bodies, cultivate a more profound association with the food we devour, and eventually help our general well being. This extreme aide is your encouragement to investigate the universe of careful eating, complete with motivating genuine models, useful hints, and viral experiences that will engage you to make 2023 per year of groundbreaking change through your relationship with food.
By neat's world2 years ago in Humans
AFRICA RESILIENCE
Introduction The COVID-19 pandemic, which emerged in late 2019, unleashed unprecedented challenges upon the global community, with Africa being no exception. The continent faced a myriad of health, economic, and social crises that tested its resilience. However, despite the immense difficulties, Africa has demonstrated remarkable adaptability and resilience in its efforts to recover from the pandemic's impacts. This essay explores Africa's resilience in the post-COVID-19 era and how it is navigating the path to recovery.
By FESTUS LILETT2 years ago in Humans
The Enigma of Urban Legends: Why We Believe
Introduction: Urban legends, those spine-tingling tales whispered around campfires or shared in hushed tones at sleepovers, have been an integral part of human culture for centuries. From the eerie stories of ghostly apparitions to tales of mysterious creatures lurking in the shadows, these legends have both terrified and fascinated us. But what drives our obsession with these stories? Why do we relish in the fear and share them generation after generation, even when logic tells us they're mere fabrications?
By Billys Zafeiridis 2 years ago in Humans
How does our immune system work
A mosquito lands on your arm, injects its chemicals into your skin, and begins to feed. You wouldn’t even know it was there, if not for the red lump that appears, accompanied by a telltale itch. It’s a nuisance, but that bump is an important signal that you’re protected by your immune system, your body’s major safeguard against infection, illness, and disease. This system is a vast network of cells, tissues, and organs that coordinate your body’s defenses against any threats to your health. Without it, you’d be exposed to billions of bacteria, viruses, and toxins that could make something as minor as a paper cut or a seasonal cold fatal. The immune system relies on millions of defensive white blood cells, also known as leukocytes, that originate in our bone marrow. These cells migrate into the bloodstream and the lymphatic system, a network of vessels which helps clear bodily toxins and waste. Our bodies are teeming with leukocytes: there are between 4,000 and 11,000 in every microliter of blood. As they move around, leukocytes work like security personnel, constantly screening the blood, tissues, and organs for suspicious signs. This system mainly relies on cues called antigens. These molecular traces on the surface of pathogens and other foreign substances betray the presence of invaders. As soon as the leukocytes detect them, it takes only minutes for the body’s protective immune response to kick in. Threats to our bodies are hugely variable, so the immune response has to be equally adaptable. That means relying on many different types of leukocytes to tackle threats in different ways. Despite this diversity, we classify leukocytes in two main cellular groups, which coordinate a two-pronged attack. First, phagocytes trigger the immune response by sending macrophages and dendritic cells into the blood. As these circulate, they destroy any foreign cells they encounter, simply by consuming them. That allows phagocytes to identify the antigen on the invaders they just ingested and transmit this information to the second major cell group orchestrating the defense, the lymphocytes. A group of lymphocyte cells called T-cells go in search of infected body cells and swiftly kill them off. Meanwhile, B-cells and helper T-cells use the information gathered from the unique antigens to start producing special proteins called antibodies. This is the pièce de résistance: Each antigen has a unique, matching antibody that can latch onto it like a lock and key, and destroy the invading cells. B-cells can produce millions of these, which then cycle through the body and attack the invaders until the worst of the threat is neutralized. While all of this is going on, familiar symptoms, like high temperatures and swelling, are actually processes designed to aid the immune response. A warmer body makes it harder for bacteria and viruses to reproduce and spread because they’re temperature-sensitive. And when body cells are damaged, they release chemicals that make fluid leak into the surrounding tissues, causing swelling. That also attracts phagocytes, which consume the invaders and the damaged cells. Usually, an immune response will eradicate a threat within a few days. It won’t always stop you from getting ill, but that’s not its purpose. Its actual job is to stop a threat from escalating to dangerous levels inside your body. And through constant surveillance over time, the immune system provides another benefit: it helps us develop long-term immunity. When B- and T-cells identify antigens, they can use that information to recognize invaders in the future. So, when a threat revisits, the cells can swiftly deploy the right antibodies to tackle it before it affects any more cells. That’s how you can develop immunity to certain diseases, like chickenpox. It doesn’t always work so well. Some people have autoimmune diseases, which trick the immune system into attacking the body’s own perfectly healthy cells. No one knows exactly what causes them, but these disorders sabotage the immune system to varying degrees, and underlie problems like arthritis, Type I diabetes, and multiple sclerosis. For most individuals, however, a healthy immune system will successfully fight off an estimated 300 colds and innumerable other potential infections over the course of a lifetime. Without it, those threats would escalate into something far more dangerous. So the next time you catch a cold or scratch a mosquito bite, think of the immune system. We owe it our lives.
By Imane elk2 years ago in Humans
What happens if you did not sleep for a whole week.
are you arranged for a deterring truth you will go through 9 000 days of your life napping I understand I scorn it too yet the vast majority will spend around 33% of their lives snoozing and that is around 9 000 days or 16 000 hours yet think about how conceivable it is that you could manage without snoozing then again if you have some work that doesn't permit you to rest enough you're probably burning through some time right as of now aren't you I expected to sort out what could happen if I didn't rest for a whole week how long is it humanly possible to manage without rest several days around 50% of a month and a rest really central plunk down and get gotten comfortable light of the way that we will answer numerous requests in regards to rest today this happens if you don't rest for seven days driving if you don't rest your body won't have the choice to rest and recover from your regular activities keep this up extended enough and you'll fall asleep forever this is generally called dying and it's by and large terrible most adults need seven and a half to eight hours of rest a night when you get not precisely this proportion of rest it's called absence of rest there are two kinds of absence of rest fragmentary absence of rest and full scale absence of rest and considering how long you've had this issue it's furthermore separated into extreme and tenacious absence of rest now with by far most's work and lifestyle partial absence of rest is unquestionably more typical basically according to the indian culture for rest research yet we will examine what happens in the two circumstances midway and complete absence of rest beforehand we ought to look at a schedule of hard and fast absence of rest day 1 you stir new and decide to start your resting challenge the underlying 24 hours of not napping are trying yet not exactly problematic keeping conscious for 24 hours is really ordinary i've gotten it going and i'm sure you've done it also aside from assuming that you're depleting in this period you'll experience a piece of the going with languor crotchetiness food wants exhaustion frontal cortex fog crippled concentration and dark circles yet you apparently know this indeed at present over an extended time and you constrain yourself to stay cognizant strangely this is the place where it gets genuinely entrancing you'll start encountering trouble learning new information and you'll encounter trouble with heading and attitude rule near this time is in like manner when the real incidental effects start to get genuinely fiery you'll start craving an extensive variety of sweet and singed food considering the way that your body needs energy and these food assortments give second energy you'll in like manner experience more bothering which makes it harder for your body to hold the enhancements from your food which is miserable because this is the place where you really need your energy because your protected structure is compromised and you'll be extremely depleted as you drive yourself to stay alert for the second day in a row your close to home prosperity joins your genuine prosperity following 48 hours of absence of rest you're basically scarcely scratching by you'll start fantasizing things experience depersonalization serious strain and well do I really need to tell you that you'll be extremely exhausted you'll in like manner start experiencing something many allude to as small rests little reprieves are short time frames of rest that happens without you understanding it a smaller than normal lay commonly happens around 30 seconds following three days of full scale absence of rest your longing to rest will be past hard to fight this is the place where your pipedreams and likes start ending up being more muddled following one day of full scale absence of rest your representations look like charitable that seat looks fleecy following 72 hours your psychological excursions are more like a sas bahu grain fun alright your small scale rests will in like manner end up being more like rests at this point considering the way that your frontal cortex is doing everything its can for make you fall asleep now following five days of no rest your perspective on the fact of the matter is extremely twisted when this happens it's called absence of rest psychosis the fact of the matter is essentially a thought at this point and your brain is doing everything its can for make you fall asleep this psychosis, generally speaking, vanishes after you get adequate rest now while these are the effects of full scale absence of rest even fragmentary absence of rest for a satisfactorily prolonged stretch of time fabricates your bet of hypertension diabetes heftiness despairing cardiovascular disappointment and stroke.So if you're consistently restless stopped jeopardizing your prosperity loosen up quit pushing yourself so damn hard and fall asleep .
By zipperooo2 years ago in Humans
Political Dissent: "Whispers of Change"
Part 1: The City of Shadows In the heart of a sprawling metropolis known as Unity City, the shadows held secrets that only a few dared to uncover. It was a city of towering skyscrapers, neon lights, and the cacophony of daily life. Yet, beneath the glittering façade lay a darkness that gnawed at the souls of its citizens.
By Deborah Tonwe2 years ago in Humans
***SCIENCE TODAY*** Planet 9: Unraveling the Mysteries of Our Hidden Neighbor
The Search for Planet 9: A Terrestrial Twist in the Outer Solar System A Terrestrial Twist in the Search for the Ninth Planet
By Kyle Red2 years ago in Humans
How does sugar affects our brain
Picture warm, gooey cookies, crunchy candies, velvety cakes, waffle cones piled high with ice cream. Is your mouth watering? Are you craving dessert? Why? What happens in the brain that makes sugary foods so hard to resist? Sugar is a general term used to describe a class of molecules called carbohydrates, and it's found in a wide variety of food and drink. Just check the labels on sweet products you buy. Glucose, fructose, sucrose, maltose, lactose, dextrose, and starch are all forms of sugar. So are high-fructose corn syrup, fruit juice, raw sugar, and honey. And sugar isn't just in candies and desserts, it's also added to tomato sauce, yogurt, dried fruit, flavored waters, or granola bars. Since sugar is everywhere, it's important to understand how it affects the brain. What happens when sugar hits your tongue? And does eating a little bit of sugar make you crave more? You take a bite of cereal. The sugars it contains activate the sweet-taste receptors, part of the taste buds on the tongue. These receptors send a signal up to the brain stem, and from there, it forks off into many areas of the forebrain, one of which is the cerebral cortex. Different sections of the cerebral cortex process different tastes: bitter, salty, umami, and, in our case, sweet. From here, the signal activates the brain's reward system. This reward system is a series of electrical and chemical pathways across several different regions of the brain. It's a complicated network, but it helps answer a single, subconscious question: should I do that again? That warm, fuzzy feeling you get when you taste Grandma's chocolate cake? That's your reward system saying, "Mmm, yes!" And it's not just activated by food. Socializing, sexual behavior, and drugs are just a few examples of things and experiences that also activate the reward system. But overactivating this reward system kickstarts a series of unfortunate events: loss of control, craving, and increased tolerance to sugar. Let's get back to our bite of cereal. It travels down into your stomach and eventually into your gut. And guess what? There are sugar receptors here, too. They are not taste buds, but they do send signals telling your brain that you're full or that your body should produce more insulin to deal with the extra sugar you're eating. The major currency of our reward system is dopamine, an important chemical or neurotransmitter. There are many dopamine receptors in the forebrain, but they're not evenly distributed. Certain areas contain dense clusters of receptors, and these dopamine hot spots are a part of our reward system. Drugs like alcohol, nicotine, or heroin send dopamine into overdrive, leading some people to constantly seek that high, in other words, to be addicted. Sugar also causes dopamine to be released, though not as violently as drugs. And sugar is rare among dopamine-inducing foods. Broccoli, for example, has no effect, which probably explains why it's so hard to get kids to eat their veggies. Speaking of healthy foods, let's say you're hungry and decide to eat a balanced meal. You do, and dopamine levels spike in the reward system hot spots. But if you eat that same dish many days in a row, dopamine levels will spike less and less, eventually leveling out. That's because when it comes to food, the brain evolved to pay special attention to new or different tastes. Why? Two reasons: first, to detect food that's gone bad. And second, because the more variety we have in our diet, the more likely we are to get all the nutrients we need. To keep that variety up, we need to be able to recognize a new food, and more importantly, we need to want to keep eating new foods. And that's why the dopamine levels off when a food becomes boring. Now, back to that meal. What happens if in place of the healthy, balanced dish, you eat sugar-rich food instead? If you rarely eat sugar or don't eat much at a time, the effect is similar to that of the balanced meal. But if you eat too much, the dopamine response does not level out. In other words, eating lots of sugar will continue to feel rewarding. In this way, sugar behaves a little bit like a drug. It's one reason people seem to be hooked on sugary foods. So, think back to all those different kinds of sugar. Each one is unique, but every time any sugar is consumed, it kickstarts a domino effect in the brain that sparks a rewarding feeling. Too much, too often, and things can go into overdrive. So, yes, overconsumption of sugar can have addictive effects on the brain, but a wedge of cake once in a while won't hurt you.
By Imane elk2 years ago in Humans
Telomere
"You might be curious why I'm discussing telomeres?'' Telomeres play a pivotal role in our overall well-being. Telomeres are like genetic bodyguards found at the ends of our chromosomes. They shield chromosomes from damage and ensure orderly cell division. However, each time a cell divides, these guards get a bit shorter. Over time, this shortening is linked to aging and age-related illnesses. Think of telomeres as the protective tips on shoelaces that keep your genetic information intact.
By Moussa Abass2 years ago in Humans
***SCIENCE TODAY!*** Kepler's Surprise: The Hunt for Alien Life on Exoplanet K2-18b
Kepler's Surprise: The Hunt for Alien Life on Exoplanet K2-18b Unveiling the Potential for Extraterrestrial Microbial Life in an Alien Ocean World
By Kyle Red2 years ago in Humans
What makes it challenging to overcome an undesirable habit?
Countless individuals grapple with nail-biting tendencies at some point in their lives. Many resort to extreme measures in an attempt to quit, such as applying chili pepper on their nail-beds, wearing gloves incessantly, immersing their hands in salt, and visualizing bacteria crawling on their fingertips. While not everyone is a nail-biter, most of us harbor a habit we wish to overcome. So, what is the most effective method for breaking one? Scientists define habits as behaviors that are regularly performed and unconsciously triggered by specific circumstances, whether it's a location, time of day, or even an emotional state. These actions can encompass simple responses like twirling hair when stressed, but can also involve more intricate routines embedded in our daily lives, such as staying up late or preparing coffee in the morning. If you find yourself engaging in something frequently, often without much conscious thought, it's likely a habit. These habits form because, at some point, your brain recognizes the behavior as advantageous. For instance, if you habitually bite your nails after opening a stressful email, this action becomes rewarding as it diverts your attention, alleviating email-induced anxiety. Within your brain, pleasurable experiences can trigger the release of dopamine, a neurotransmitter responsible for feelings of pleasure. Dopamine also plays a pivotal role in neuroplasticity, which means it can alter the connections and firing patterns of your neurons. Your brain establishes associations that link the reward with the behavior, compelling you to repeat it. Over time, your brain starts linking the behavior with other cues, like your surroundings. Eventually, simply being at your desk can subconsciously trigger the habit of nail-biting, without the need for a stressful email or a sense of relief. Once these cue-behavior-reward loops are established, they operate swiftly, often outpacing your decision-making process. You may find yourself succumbing to a habit before you even realize it. However, this can be advantageous because not all habits are detrimental. They represent stored memories of what has proven effective in the past, allowing you to take swift action in the present. Research suggests that, on average, people spend over 40% of their day engaging in habitual behaviors while their minds are occupied with other thoughts. For example, an automated morning routine can save both time and mental energy. Nevertheless, many individuals possess habits that no longer serve them. Research indicates that mere intentions frequently fall short in bringing about long-term behavior change. This isn't to say that breaking a habit is impossible. Rather, by comprehending the foundation of habits, you can develop more effective strategies for altering them. For instance, we understand that habits are often triggered by specific environments and routines. Lying in bed may lead to endless smartphone scrolling, while watching TV on the couch might prompt you to reach for sugary snacks. One of the most effective ways to manage behavior is to pinpoint these locations or times of day and then endeavor to modify them by altering your routine or introducing obstacles that make it challenging to engage in the habit within that setting. Relocating, changing jobs, or adopting a new schedule can be particularly opportune moments to break a habit or establish a new one. In cases where habits like nail-biting or hair-pulling persist, a method known as habit reversal training can prove beneficial. Developed by psychologists in the 1970s, the goal is to replace a detrimental habit with a less harmful one. This training necessitates a comprehensive analysis and understanding of your habit triggers so that you can effectively intervene at the right moments. For example, if you tend to bite your nails at work, you can proactively keep a fidget toy on your desk. Then, when faced with a stressful email, you can use the toy when the urge to bite your nails arises. Breaking a habit requires time and effort, but it is indeed achievable.
By Amir Khachi2 years ago in Humans
***Science Today*** Unlocking the Enigma of Human Survival: The Mystery of the 100,000-Year Transition
Unlocking the Enigma of Human Survival: The Mystery of the 100,000-Year Transition Revealing the Near-Extinction Event and Evolutionary Breakthroughs of Our Ancestors
By Kyle Red2 years ago in Humans

science

The Ultimate Guide to Mindful Eating: Boost Your Health in 2023

AFRICA RESILIENCE

The Enigma of Urban Legends: Why We Believe

How does our immune system work

What happens if you did not sleep for a whole week.

Political Dissent: "Whispers of Change"

SCIENCE TODAY Planet 9: Unraveling the Mysteries of Our Hidden Neighbor

How does sugar affects our brain

Telomere

SCIENCE TODAY! Kepler's Surprise: The Hunt for Alien Life on Exoplanet K2-18b

What makes it challenging to overcome an undesirable habit?

Science Today Unlocking the Enigma of Human Survival: The Mystery of the 100,000-Year Transition

science

The Ultimate Guide to Mindful Eating: Boost Your Health in 2023

AFRICA RESILIENCE

The Enigma of Urban Legends: Why We Believe

How does our immune system work

What happens if you did not sleep for a whole week.

Political Dissent: "Whispers of Change"

***SCIENCE TODAY*** Planet 9: Unraveling the Mysteries of Our Hidden Neighbor

How does sugar affects our brain

Telomere

***SCIENCE TODAY!*** Kepler's Surprise: The Hunt for Alien Life on Exoplanet K2-18b

What makes it challenging to overcome an undesirable habit?

***Science Today*** Unlocking the Enigma of Human Survival: The Mystery of the 100,000-Year Transition

SCIENCE TODAY Planet 9: Unraveling the Mysteries of Our Hidden Neighbor

SCIENCE TODAY! Kepler's Surprise: The Hunt for Alien Life on Exoplanet K2-18b

Science Today Unlocking the Enigma of Human Survival: The Mystery of the 100,000-Year Transition