A dream includes the images, thoughts, and emotions that are experienced during sleep. Dreams can range from extraordinarily intense or emotional to very vague, fleeting, confusing, or even dull. Some dreams are joyful, while others are frightening or sad. Sometimes dreams seem to have a straightforward narrative, while many others appear to make no sense at all. Many suggest that… Read more →
All Mouse-sized micro-Bats use ultrasound calls for echolocation, but fruit bats and flying foxes (megabats) have lost this ability. Although we can’t hear it, echolocation requires bats to scream at 130 decibels! That takes a lot of energy, but the micro-Bats can harness some of their wingbeats’ muscular efforts to generate the air pressures needed for their ultrasound calls. Mega… Read more →
Different painkillers cure headaches in different ways. Two critical types of painkillers are most commonly used. The first type of painkillers are Aspirin medicines includes ibuprofen and paracetamol, which blocks the body’s prostaglandins (the chemical that produces swelling and pain), reducing swelling in the area and therefore reducing the intensity of pain. These aspirin medicines are used frequently for mild… Read more →
Until recently, the most possible explanation was that yawning increased the supply of oxygen to the brain. However, there is mounting scientific evidence to suggest that yawning has more to do with temperature than oxygen. As brain temperature rises, concentration and memory suffer, and a number of tests in humans and animals have shown that yawning is linked to heat,… Read more →
Do you know someone who seems to deal with a stuffy nose all winter long? Is it you? Sometimes it seems like the winter months and a stuffed-up nose go hand-in-hand. Contrary to popular belief, cold weather itself doesn’t cause a stuffy nose but rather, the conditions that come with cold weather often do. Here are a few reasons why… Read more →
Hiccups can be annoying but they’re usually short-lived. However, some people may experience recurrent episodes of persistent hiccups. At its most basic, a hiccup is a reflex. It happens when a sudden contraction of your diaphragm causes the muscles of your chest and abdomen to shake. Then, the glottis, or the part of your throat where your vocal cords are… Read more →
Retroreflection occurs when a surface returns a large portion of the directed light beam back to its source. Retroreflective materials appear brightest to observers nearest the light source (such as a motorist). The object’s brightness depends on the intensity of the light striking the object and the materials the object is made of. Traffic sign technology has changed dramatically in… Read more →
Usually, the bitterness is caused by some climate or soil conditions that could be easily solved. That’s why it is so important to take preemptive steps to keep them from becoming bitter in the first place. Cultivated cucumbers all contain cucurbitacin B and cucurbitacin C, compounds that are supposed to make their leaves bitter and less tasty to munching animals.… Read more →
Injections are among the most common health care procedures throughout the world, with at least 16 billion administered in developing and transitional countries each year. Intravenous (IV), subcutaneous (SC), and intramuscular (IM) are the three most frequently used injection routes in medication administration. IV injection is the introduction of medication into the veins using a needle, and it is used… Read more →
If you tend to pack the pounds on your tummy or your back or your upper arms, you’ll continue to tend to put fat there. Forever. Sit-ups and squats can help shape our bodies differently, but no amount of diet or exercise will turn you into a person who naturally stores lipids in a different place. Specifically, your sex hormones.… Read more →
