Science
Science
Protecting Your Hearing: How to Prevent Hearing Loss from Headphone Use
I wear headphones all the time. Recently, I've been wondering if all that listening is bad for me, and this led to a full-on spiral where I learned the horrifying statistic that over a billion young adults are at risk of permanent, avoidable hearing loss. Am I one of those billion? In a time where we're giving our ears less of a break than ever before, how can we make sure that we're not losing our hearing long term? And what tools are at our disposal to ensure that we can minimize that damage? Headphones are not necessarily bad. If you wear headphones, you're not automatically going to develop hearing loss. That's Amy Saro. I'm a doctor of audiology, so I often go by Dr. Amy. Dr. Amy explained to me just how fragile our hearing is. It all has to do with these tiny hair cells in our ears. When your hair cells are healthy, they stand up kind of like a field of wheat. When the sound comes through, it looks like a tornado has come through and they're all twisted up. If you're lucky, they're able to sort of rebuild themselves back straight up, nice and tall. But if you do that often enough, or if the sound is loud enough, the damage is permanent. Permanence in the sense that those hairs are bent out of shape forever and your hearing doesn't come back naturally, nor do we have treatments that can reverse the effects of it. This permanent damage is caused by both duration and loudness, which is measured in dB and works on a logarithmic scale. This means if you're listening to something at 85 dB and then you raise the volume to 88 dB, you've actually doubled the loudness, even though it's such a small shift. This is where things can quickly get dangerous because we're often listening louder than we realize. A lot of times it was 110 dB or it was over 100 dB. It's easy to do because you turn the volume up when you like a song, and you don't realize how loud that is, especially if you're trying to overpower the sound of a train, the buzz of a coffee shop, or your neighbors mowing their lawn. For context, the US Department of Labor recommends no more than 8 hours of 85 dB exposure to be considered a safe working environment. If you dig into your settings on your phone, you can limit your volume to a certain decibel threshold, but if doing so prevents you from hearing clearly, well, maybe you can lower the volume of the world around you. The sound you're hearing is coming from this device, which is meant to record what you'd actually hear if you were in this space and if you were using these headphones. Now, if I'm honest, I always thought that noise cancellation was kind of a marketing tactic, you know, like a neat feature that was pretty cool but not 100% necessary. The more I talk to experts, the more I realize that it's actually a protective line of defense in noisy environments. There are two types of noise cancellation: passive noise cancellation, which is when something is physically blocking the sound from coming in, and active noise cancellation. This is when the headphones have mics that can listen to the sound of the environment. For simplicity's sake, let's visualize this as a singular wave. The headphones hear that wave, analyze it, and then generate a sound wave that's the exact inverse of it—an anti-wave, if you will. When you put the two together, you get silence or close to it. Our environment is much more complicated than one wave; there's tons of different dynamic sounds happening all at the same time. Noise-canceling headphones are best at removing persistent low-frequency hums, anything in the 1,000 Hz range or below—think airplane turbines, trains, engine noise. But that doesn't mean no sound gets in. What's not going to work well with that are higher frequency sounds, like birds chirping or a sudden loud sound. It doesn't have a chance to analyze and decide what to do with that, so usually, the sound is just going to come through. When the world still seems too loud, but emotionally speaking, sometimes I find it helpful to pause, take a second, and maybe even find somebody to talk to. And that's where the sponsor of this video comes in. BetterHelp sponsors, like BetterHelp, make videos like this possible. If you're thinking of starting therapy, think about giving BetterHelp a try. It's entirely online, designed to be convenient, flexible, and suited to your schedule. So take a moment, visit betterhelp.com/svoxvideo to get 10% off your first month. That's betterhelp.com/svoxvideo. Now, time to get back to the video. Creating silence in an otherwise noisy environment feels like magic, but it also leads to some weird questions. Like, does noise cancellation have volume? In other words, if we're pumping an anti-sound wave to create silence, are our brains interpreting it as silence while our ear hair cells are still getting wrecked in a quiet tornado? If it's working properly, it will not produce a sound. My name is Luke Keller, and I'm a professor of physics and astronomy at Ithaca College. You can think about it further up the stream. The eardrum is bouncing back and forth in response to sound waves, but if they're canceled, it's not moving. There's no vibration to transmit to the inner ear. So it is literally making the sound go away. There's no negative effect; the cancellation happens completely in the electronics, not in your head. So noise canceling actually does remove the sound, leaving our ear hair cells largely unaffected. And that's true of just about any pair of headphones that have noise canceling. So don't feel obligated to get the most expensive, best ones. Any halfway decent pair will work well enough to protect your ears.
By Mai Mustafa2 years ago in FYI
A Journey to Radiant Skin: My Daily Beauty Ritual. AI-Generated.
My journey to achieving healthy, radiant skin has been filled with trials and errors, but I've finally found a routine that works wonders for me. My face used to be very dry, so in the mornings, I avoid harsh cleansing foams and oils. Instead, I opt for a gentle cleansing milk. It’s soothing and doesn’t strip away my skin’s natural oils. The areas I focus on most are around my chin and nose. Since switching to this method, my skin has shown significant improvement. It turns out, my face was craving moisture and oil. With consistent care, my skin texture has improved, and the painful dryness I used to experience has lessened considerably.
By Emily Johnson2 years ago in FYI
The Challenge Within: Emma's Journey to Conquer Her Limits
The Challenge Within ### Chapter 1: The Restless Mind In a bustling city, a young woman named Emma felt a deep sense of restlessness. Despite her comfortable job and supportive friends, something was missing. She had always been ambitious, but her current life felt stagnant. She longed for a challenge, something that would push her beyond her comfort zone. Emma had always been fascinated by mountains. The idea of standing on top of a peak, looking down at the world, symbolized conquering her fears and limitations. She decided that she would climb one of the highest mountains in her country, Mount Echo. This decision was met with mixed reactions from her friends and family. Some were supportive, while others were skeptical, questioning her physical ability and preparedness. ### Chapter 2: The Preparation Emma began her preparation with determination. She joined a local gym and hired a personal trainer who specialized in endurance training. The workouts were grueling. She woke up at dawn for long runs, lifting weights, and practicing rock climbing. Her body ached, but she relished the pain as a sign of progress. Each day, she pushed herself a little harder, ran a little farther, and climbed a little higher. In addition to physical training, Emma read books and watched documentaries about mountain climbing. She learned about the equipment she would need, the best routes, and the potential dangers she might face. She practiced setting up her tent, cooking with a portable stove, and packing her backpack efficiently. Emma's weekends were now dedicated to hiking smaller mountains and trails to build her stamina and experience. Each hike brought new lessons. She learned how to navigate using a compass and map, how to conserve her energy, and the importance of staying hydrated and nourished. She made mistakes, got lost a few times, but each error was a valuable learning experience. ### Chapter 3: The Doubts As the months passed, Emma's body grew stronger, but her mind was often filled with doubts. The stories of climbers who had failed or met with accidents haunted her. She questioned whether she had what it took to complete such a daunting task. The weight of her decision sometimes felt overwhelming. One evening, after a particularly exhausting training session, Emma confided in her best friend, Sarah. "What if I'm not good enough? What if I can't do it?" she asked, her voice trembling with uncertainty. Sarah looked at her with a mixture of sympathy and determination. "Emma, you've already achieved so much. Remember why you started this journey. It's not just about reaching the summit; it's about pushing your limits and discovering your true strength. You've got this." ### Chapter 4: The Journey Begins With renewed resolve, Emma set a date for her climb. The day arrived, and with her backpack loaded and her heart pounding with a mix of excitement and fear, she began her ascent of Mount Echo. The initial part of the trail was familiar and relatively easy, surrounded by lush forests and chirping birds. As she climbed higher, the terrain became more challenging. The air grew thinner, and the temperature dropped. Emma's legs burned with each step, and her breath came in short gasps. She encountered steep inclines, rocky paths, and narrow ledges that tested her balance and courage. Each step required careful consideration and focus. ### Chapter 5: The Obstacles Halfway up the mountain, Emma faced her first major obstacle. A sudden snowstorm swept over the mountain, reducing visibility to nearly zero. The wind howled around her, and snow pelted her face. She struggled to set up her tent, her fingers numb from the cold. Inside her tent, she shivered, both from the cold and the fear that she might have to turn back. As she waited out the storm, Emma remembered the countless hours of training, the books she had read, and the encouragement from Sarah and her other friends. She couldn't give up now. She had come too far. She focused on staying warm and hydrated, conserving her energy for when the storm would pass. ### Chapter 6: The Summit Push The storm eventually subsided, leaving behind a crisp, clear morning. Emma emerged from her tent to a breathtaking view of the snow-covered landscape. Refreshed and determined, she continued her ascent. The final part of the climb was the most difficult. The air was thin, and every step felt like a monumental effort. Her muscles screamed in protest, and her mind wavered between hope and despair. As she neared the summit, Emma encountered a sheer ice wall. She secured her crampons and ice axe, using every ounce of strength and technique she had learned. It was a slow, painstaking process, but she kept moving, inch by inch, upward. Her heart pounded, and her breaths were ragged, but she refused to stop. ### Chapter 7: The Triumph Finally, after what felt like an eternity, Emma reached the summit. She stood at the top of Mount Echo, her chest heaving with exertion and emotion. The view from the peak was nothing short of spectacular. The world stretched out before her in a vast panorama of valleys, rivers, and distant peaks. Tears of joy and relief streamed down her face. She had done it. She had conquered the mountain, and more importantly, she had conquered her doubts and fears. Standing there, she felt a profound sense of accomplishment and clarity. This journey had taught her that she was capable of far more than she had ever imagined. ### Chapter 8: The Return The descent was challenging in its own right, but Emma was buoyed by her success. She navigated the treacherous paths with care, her confidence bolstered by her triumph. When she finally returned to the base, her friends and family were there to greet her with cheers and hugs. Emma's journey to the summit of Mount Echo became a defining moment in her life. It was a testament to her resilience, determination, and the power of challenging oneself. She realized that the true value of the experience lay not just in reaching the top, but in the journey itself – the preparation, the struggles, the doubts, and ultimately, the triumph over adversity. ### Chapter 9: The Lessons Emma's adventure inspired many in her community. She began sharing her story, giving talks at local schools and community centers about the importance of setting goals, persevering through challenges, and believing in oneself. Her message resonated with people of all ages, encouraging them to pursue their own dreams and overcome their own obstacles. For Emma, the climb was just the beginning. She continued to seek out new challenges, both physical and mental. Each new endeavor was approached with the same determination and resilience that had carried her up Mount Echo. She knew that the journey to success was ongoing, filled with peaks and valleys, but she was ready for whatever came her way. ### Chapter 10: The New Horizons Years later, Emma looked back on her climb of Mount Echo as a pivotal moment in her life. It had set her on a path of continuous growth and self-discovery. She had traveled to many other mountains, both literal and metaphorical, always pushing herself to reach new heights. She had built a successful career, made lasting friendships, and found a deep sense of fulfillment in her adventures. Emma's story is a reminder that the greatest challenges often lie within us. By confronting our fears, pushing our limits, and embracing the unknown, we can achieve extraordinary things. Success is not just about reaching a destination, but about the journey and the growth we experience along the way.
By Ibrahim mohamed2 years ago in FYI
5 Challenges Faced by Indian Businesses and How Software Solutions Company in India Can Help
The world of technology is constantly evolving, and India is at the forefront of this evolution. All Software solutions company in India are not only developing cutting-edge solutions for domestic needs but are also playing a leading role in shaping the future of global technologies, particularly blockchain.
By Nisha Jain2 years ago in FYI
WHAT HAPPENS WHEN WE SLEEP?. AI-Generated.
1. During rapid eye movement sleep, your muscles are paralyzed, making it impossible to move your limbs. This deep sleep stage is crucial for rest and restoration, but some people with narcolepsy may experience this paralysis even after waking up, which can be frightening.
By Farza Siddique2 years ago in FYI
Paywalls: Gatekeepers or Gateways?. AI-Generated.
Paywalls: Gatekeepers or Gateways? Navigating the Evolving Landscape of Paid Content The internet, once a seemingly boundless ocean of information, is increasingly dotted with digital tollbooths – paywalls. These barriers restrict access to premium content, sparking a heated debate about their impact on the flow of knowledge. But before we dive in, let's unpack what paywalls truly are.
By suren arju2 years ago in FYI
Unraveling Odoo: Dive Into This Powerful Platform and Its Significance. AI-Generated.
Introduction In today's rapidly evolving business landscape, companies must adapt to changing conditions swiftly to thrive and expand. This necessitates the implementation of an effective and efficient management system that is tightly integrated. Modern businesses require comprehensive Enterprise Resource Planning (ERP) solutions to manage various facets, such as vendor-client relationships, productivity, human resources, and finances. Odoo stands out as an all-in-one business solution that addresses these needs comprehensively. This article provides an in-depth overview of Odoo, its importance, and why it is a go-to choice for businesses aiming for excellence.
By Nidish LLC2 years ago in FYI
