Why is antimicrobial resistance dangerous?

 

Although medicine and science have developed massively in the past few decades, we are still facing some global menaces at the beginning of the 21st century. The discovery of vaccines played an essential role in modern medicine, helping eradicate various diseases that were responsible for the deaths of hundreds of millions of people all over the globe.

Unfortunately, once the most powerful weapon against bacteria and germs, antibiotics started to lose their efficiency as new generations of bacteria suffered mutations. So why is antimicrobial resistance dangerous? Here is everything you need to know about the topic.

What are microbes?

There are billions of microbes existent in the world, but most of them are harmless to people. The human immune system can efficiently fight against these microbes so that we don’t end up sick after simply getting in contact with another person or elements in the environment.

However, types of microbes like fungi, parasites, viruses or bacteria are potentially dangerous to people and can cause serious health problems and diseases. They are called pathogens but are also referred to as bugs or germs.

 

How can we fight microbes?

Certain pathogens can simply be destroyed with the help of good personal hygiene and some common sense rules of eating. Drinking water only from uninfested sources and washing our hands with soap or gel on a regular basis are usually enough to get rid of various microbes.

Unfortunately, other groups of microbes are more dangerous to humans and can only be eradicated with medicines and antibiotics. These are usually prescribed by the doctor and are only taken under the strict surveillance of a physician for a determined period, generally lasting between three and ten days.

 

What causes antimicrobial resistance?

Microbes represent living organisms with their own DNA. Similar to humans, plants, and other animals, microbes also have the ability to evolve in order to adapt to new environmental and climate conditions. Thus, what seemed to be enough to kill bacteria a few decades ago may not have the same effect today.

Antibiotics can fight against bacteria, but traces of them remain in our bodies, leading to genetic mutations in time. It is said that the body has a memory of its own and can automatically adjust in order to survive. So, what used to kills us or make us sick a century ago will no longer have the same effect on our bodies today.

Unfortunately, since we have been extensively using antibiotics in the past decades, microbes became immune to them and evolved into more resistant strains. This led to dangerous mutations that no longer respond to the treatments we were used to so humanity is facing yet again the threats of the environment.

 

Intriguing historical mysteries



History is a weird place where you can easily get lost in its mysteries. Some we have solved, while others remain without an answer even to this day. We can speculate, but we might never actually get to see what happened. And the lack of proof and answers is what makes these mysteries so enjoyable and nice to think about late at night, or around a campfire when it’s time to share stories with your friends.

One of the history’s biggest question is related to the most infamous murderer who has ever lived. Who was Jack the Ripper? It is a well-known fact that the intriguing figure killed five women, that we know of today, in London in 1888. He even sent letters to the police mocking them, but his true name was never discovered. The people of that time had their suspicions, and a recent book even said a woman was behind all the crimes, although that was never proved.

An even darker secret of the human saga is the story of the bog bodies. They are perfectly preserved human bodies, discovered in the sphagnum bogs of Northern Europe, which inhibited their decomposition. This allowed the skin and the organs to stay almost intact. The weird thing is that there were thousands of bodies, that are believed to be as old as the Iron Age, and most of them show signs of being murdered. Most historians believe they were part of a pagan sacrifice or that they were punished by their rulers.

Speaking of Europe, another secret that history has denied us the answers to is the formation of the famous Stonehenge. The glorious structure has inspired many stories and many possible answers, but even to this day, we still haven’t gotten closer to the truth. It is made of big pieces of bluestone, that each weighs more than six tones and it can be found in Salisbury Plain, England. It is believed to have been made in the Neolithic by the believers of a pagan religion who worshiped it for its healing powers or used it as a burial ground.

We also still don’t know if Shakespeare was who historians say he was and if he really wrote his own books, we have to find out who created the Nazca Lines in Peru, and ultimately, this is more of a primordial question than a historical mystery, we have to discover how life began on Earth.

No matter if we have answers or not, these miseries feed our creativity and let our mind fill the void in history. What is life without a little bit of intrigue, and without questions that lead to so many stories? Now, let your mind wander and try to come up with your answers to the moments we have presented so that you can add a new layer of depth to them.

 

Anyone can learn how to use a microscope

 

 

It is my solid conviction that science is not hard and that many people would be interested in finding out more if they were just well familiarized with terms and how different equipment works in the process of scientific experiments. A microscope, for instance, should not be seen as a complicated device.

Anyone can learn how to use a microscope. At first glance, things may look complicated, but I am here to prove you otherwise. This website has more information that I can offer you in this short blog post, and I want to recommend it to you. But now, let’s learn a few things together and discover what makes working with a microscope such a fascinating activity.

A few things about the main components should be learned first. The platform on which the specimen sits on slides for easy viewing is called the stage, just like in a theater. The only thing that differs is that you won’t watch actors enacting a play, but different specimens used for scientific experiments.

The arm is the part that makes the connection between the base and the piece you are looking through. The focus knobs are useful for bringing the specimen closer and have the image become clearer. Next, you have the objective whose primary role is to magnify the picture. Use the diaphragm for adjusting the amount of light you need.

One of the important things to keep in mind is to place the microscope on a flat surface, so you don’t feel cramped when working. The light source is the first thing you need to switch on. When you start the compound microscope for the first time, make sure that the diaphragm is adjusted for the largest diameter possible, to let plenty of light in.

A scan is usually performed at the lowest power, as it provides plenty of field of view. After that, you can proceed at watching your specimen. The slide must be carefully operated so that the sample ends up exactly under the lens. If you encounter troubles, the best way to achieve the results you want is slightly turning the control knobs.

Make sure that your specimen is in focus. Also, lighting is important, so fiddling with the control for a while longer will help you see better through the microscope. Now you can move the nosepiece to reach the highest magnification and power.

At any stage, remember that you can adjust the focus and the light. This helps you see better everything you need, related to the specimen. After all, this is what microscopes are made for, and they are tools to be used.