LND topic: human page 35

human

The Surprising Link Between Ancient Fish Scales and Your Tooth Sensitivity

May 24, 2025

The human body is full of mysteries. One of these is the sensitivity of our teeth. Ever wondered why a cold treat or a dentist's drill can make your teeth zing? The answer lies in the distant past, with ancient armored fish. These fish, living around 500 million years ago, had exoskeletons that wer

science

Far-UVC Light: Double-Edged Sword for Lung Health

May 24, 2025

The use of far-ultraviolet C (Far-UVC) light, specifically within the 200 to 235 nanometer range, has shown promise in killing germs. This type of light is being explored for various medical uses. However, its effectiveness against infections deep within the body, such as those in the lungs, is stil

technology

Seeing Beyond: The Future of Infrared Vision

May 23, 2025

Ever thought of seeing in the dark? Scientists have created contact lenses that let humans and mice see near-infrared light. This light is usually invisible to us, but these lenses convert it into visible colors. The secret? Special nanoparticles embedded in the lenses. These nanoparticles absorb in

science

Unlocking the Brain's Secrets: A New Look at Ex-Vivo MRI

May 23, 2025

The human brain remains one of the most intricate and least understood organs. Ex-vivo MRI scans, which are performed on brains outside the body, provide a unique window into this complexity. These scans allow for detailed anatomical mapping and integration with tissue studies. This makes them in

health

The Power of Positive Sexual and Reproductive Experiences

May 23, 2025

Sexual and reproductive health is a big deal in everyone's life. It's about more than just avoiding problems. It's about having the kind of sexual and reproductive experiences that make people happy and fulfilled. Most discussions and measurements focus on the negative aspects. They talk about what

science

The Evolution of Lice-Loving Bacteria

May 23, 2025

The way bacteria spread has changed a lot over time. Some bacteria have moved from ticks to lice. This switch often makes the bacteria more dangerous. Why and when this happened is a mystery. This is a story about one such bacteria, Borrelia recurrentis. A team of researchers dug up some ol

science

Night Vision Contacts: The Future of Seeing in the Dark

May 22, 2025

The ability to see in the dark has long been a fascinating concept. It is a well known fact that humans can only see a small part of the light spectrum. This is a very small range compared to other animals. Some animals can see in the infrared or ultraviolet spectrum. For example, snakes, mosqui

health

Plastic in Our Veins: The Hidden Dangers of IV Drips

May 22, 2025

Microplastics have become a hot topic in environmental discussions. These tiny plastic particles are everywhere. They are in the air we breathe, the water we drink, and even the food we eat. But did you know they can also enter our bodies through a more direct route? Intravenous (IV) drips, often us

politics

Diplomats Under Fire: A Misstep in the West Bank

May 22, 2025

A diplomatic mission turned tense when Israeli soldiers fired warning shots at a large group of foreign diplomats. This group was visiting the Jenin refugee camp in the West Bank. The visit was meant to assess the humanitarian conditions in the area. The incident sparked quick criticism from many co

politics

Gaza's Aid Crisis: A Closer Look at the Challenges

May 22, 2025

The situation in Gaza is dire, with aid struggling to reach those in need. The United Nations is working hard to distribute supplies, but they face significant hurdles. Israeli military restrictions and fears of looting have caused major delays. The Israeli Prime Minister, Benjamin Netanyahu, has an