Scinotions

Your daily dose of Science and Tech

How does the brain find out almost instantly that the tea is too hot?

The tongue has a complex mechanism for informing the brain about contact with something hot, such as tea. The same mechanism is pretty fast and efficient. There are a multitude of nerve endings on your tongue that detect temperature. As soon as you take a sip of that hot tea, these endings are activated, alerting the brain. Here's how the process works, in detail. When the temperature of the tea is higher than 109.4 degrees Fahrenheit (43 °...

Why do we get vaccinated in the shoulder with the Covid19 vaccine?

Those who were vaccinated against the COVID-19 virus but also those who did not observed that the vaccination was done in the shoulder. Specifically, in a shoulder muscle called the deltoid. Why do we get vaccinated in the shoulder with the Covid-19 vaccine? At this point you are probably asking yourself what's so special about this muscle? Not all vaccines are given into the shoulder muscle (intramuscular injection). Some, such as the...

C-Section born children have a 33% higher risk of having autism, according to a controversial study. What is the risk of ADHD

C-section born children have a 33% higher risk of having autism disorder and 17% of ADHD, according to a research that combined 61 studies across 19 countries. The statistical analysis, which was recently published in the JAMA Network Open, does not show that caesarean section directly causes such medical problems. Other factors that have led doctors use the c-section procedure could be the reason for this, according to Reuters. Researchers led...

Scientists created the first human esophagus made from stem cells

Bioengineering scientists working to produce the entire human gastrointestinal system in the laboratory reported that pluripotent stem cells were used to create a human esophagus. This is the first time scientists have been able to grow human pluripotent stem cell (PSC) esophageal tissue, cells that theoretically can form any type of body tissue. Published in the Cell Stem Cell diary, the study presents the latest innovatotion from researchers...

Are infrared radiant heating panels beneficial to health?

Infrared radiant heating panels are being promoted aggressively recently. Marketeers say about these device that they represent a safe way to reduce the heating bill. Some will go one step further and say that they have "miraculous therapeutic effects". Of course, all these alleged health benefits does not have a reputable scientific study to back the claims but hey... if it is cheap and it works, people will buy them regardless. Among the...

Blue light emitted by smartphones and tablets can lead to vision issues

A team of scientists at the University of Toledo in the United States has revealed that prolonged exposure to blue light triggers the release of toxic molecules in photoreceptor cells that, in time, could lead to vision issues. In time, this can lead to macular degeneration, an ophthalmic disorder that causes destruction of central vision. In other words, the blue light, which has a shorter wavelength and emits more energy compared to other...

How Novichok nerve agents work

Novichok, the nerve agent that was used on the former former agent Serghei Skripal and his daughter, Julia, is a much stronger chemical weapon than VX, the substance used in the assassination of Kim Jong-nam, the North Korean dictator's step-brother. Unlike other known neurotoxins which are used in the form of vapor or liquid, Novichok is mostly used as an ultra-fine powder. How does this chemical weapon work? Novichok is made up of two...

Studies conclude: Keep your brain in shape by learning music or a new language

A new study suggests that whether you learn to play a musical instrument or you learn to speak another language, you train your brain to be more effective. Researchers at Department of Communication Sciences and Disorders, Northwestern University, IL have concluded that musicians and bilingual people use less brain resources when finalizing a task involving memory usage. People with musical or bilingual backgrounds have activated different brain...

Duck-Billed Platypus’ milk could help us fight antibiotic resistant bacteria

The Duck-Billed Platypus is an extremely bizarre animal. He is one of the very few survivors of the group of mammals that is laying eggs. It has venomous fins, and it looks like a hybrid of a duck and a rodent. Now, another interesting feature of this unusual looking animal has been discovered: its milk contains an unique protein that can help us fight bacteria that are resistant to antibiotics. Because bacteria have evolved to resist...

Israeli ophthalmologists invented revolutionary eyedrops that can improve vision and even replace glasses

A team of researchers from Shaare Zedek Medical Center and the Institute of Nanotechnology and Advanced Materials at Bar-Ilan University (Israel) created eye drops that can repair corneas and improve myopia and hypermetropia. "Nanoparticles" have been successfully tested on pig corneas, and clinical trials will begin later this year, writes Interesting Engineering. The test results showed a significant improvement in error correction for both...

Breast cancer spreads much faster because of a compound found in these foods

Asparagus and other foods could be excluded from the diet of patients affected by breast cancer because they increase the risk of spreading the tumor through the body, experts say. Researchers are studying whether changing their eating habits could help patients with mammary tumors after studies on mice have shown that asparagine, an asparagus compound, but also present in other foods, leads to the spread of the disease to other organs....

The risks to which the gamers are unknowingly exposed

An extensive study shows the negative effects of video game addiction. Addiction to video games has a negative impact on personal and social relationships and contributes to depression and heart stress, according to a study quoted by the Press Association. Statistics that included data from 130,000 gaming enthusiasts across multiple countries have shown that lowering family harmony and adverse effects on mental and physical health can be...