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 Humans gained the power of sight due to a bacterium, scientists reveal Among the five senses, the function of the eye is to see. The structure of the eye is so complex that even Charles Darwin could not define this organ correctly. After all, how did the eye, which is considered a very important organ, develop? How did it acquire sight? Scientists have made an important revelation. According to them, all vertebrates , including humans, acquired the ability to see due to a bacterium. According to scientists, the same bacterium introduced the gene that made the retina of the eye active towards light into our body. Research on this has recently been published in the Proceedings of the National Academy of Sciences . This study was conducted by a team including Ling Zhu , an eye biologist at the University of Sydney, Australia . According to him, the eyes of vertebrates evolved in a very complex way. It contains a mixture of different types of genes, i.e. genes. In fact, bacteria cha...

 Scientists discover bacteria that eat plastic Scientists have developed self-destructive plastic . Scientists say that this will help reduce pollution. Polyurethane , i.e. plastic, is used everywhere. Since it is difficult to recycle, it is disposed of in landfills. However, scientists have found a scientific solution to this. Scientists have developed a plastic that self-destructs by incorporating particles of plastic-eating bacteria . Those bacterial particles remain inactive as long as the plastic is being used. However, when the plastic is disposed of after use, they revive and start eating the plastic. University of California researcher Han Sol Kim says that this gives us hope that we can reduce plastic pollution in nature. In addition, it has another advantage that the bacterial particles of plastic-eating bacteria increase the hardness of the plastic. Another researcher, John Pokorsky, says, “Our process makes the material stronger, which increases its useful life. And, wh...

 Can oral bacteria protect against Alzheimer's? According to the University of Exeter , there are some bacteria in the human mouth that can be a factor in the changes that occur in the brain with increasing age. Oral bacteria can protect against Alzheimer's , a brain problem. Similarly, experts claim. Alzheimer's disease is a ' neurodegenerative' condition . In which brain cells start to deteriorate. This causes difficulty in memory, thinking ability and daily activities. According to experts from the University of Exeter, there are some bacteria in the human mouth that can be a factor in the changes that occur in the brain with increasing age. Study author Dr. Joanna L. Hurrex says, 'During a study conducted by the University of Exeter, such types of bacteria have been discovered, which are associated with excellent memory and consciousness, while many other bacteria are associated with weak brain and Alzheimer's disease. Alzheimer's disease can be dete...

 Nutraceuticals: Should patients not be told or an unnecessary financial burden? With the expansion of the market for nutraceuticals and dietary supplements in Nepal , debates have increased about their registration, quality, price, recommendation, and sales and distribution. A patient goes to the hospital with general weakness, fatigue, or body aches. After an examination, the doctor recommends vitamins, minerals, omega-3, probiotics, or other supplements along with medicine. When it comes time to pay the bill for the medicine at the pharmacy, patients are shocked. Supplements are actually very expensive. And the question arises in their minds – are all these medicines not to be taken? The market for nutraceuticals and dietary supplements is expanding in Nepal. There is a constant debate about their use, registration, quality, price, medical recommendation, and sales and distribution. This raises the main question – are nutraceuticals a real need of patients or not? What are nutra...

 Why do you feel dizzy when you stand up from the sun? As soon as you stand up suddenly, some of the blood starts to pool in your legs and lower body due to gravity. The condition in which blood pressure drops and dizziness occurs when you stand up suddenly after sitting in the sun for a long time is called 'orthostatic hypotension'. In summer, sweating and dehydration can reduce the blood supply to the brain, causing a person to lose their physical balance. To avoid such problems, it is necessary to drink enough water, avoid sitting in too much heat, and get up slowly from a sitting position. Many people have experienced dizziness, blurred vision, shaky body, or momentary loss of balance when standing up suddenly after sitting in the sun for a long time. Some people consider this to be normal weakness or the effects of the sun. But in fact, it is a condition related to temporary changes in blood circulation and blood pressure within the body. The sun's heat, sweating, an...

 Why is it mandatory to test for hepatitis B and C when donating blood? Medical science says that hepatitis B and C infection can be transmitted through blood, so before giving blood to the patient, it is mandatory to test these viruses. Millions of patients around the world are given blood to save their lives. Surgery, accidents, childbirth, cancer, thalassemia, anemia - in all these cases blood is vital. But if this life-giving blood carries the hepatitis 'B' or 'C' virus, it can become a silent risk rather than a life saver. Therefore, it is very important to test for hepatitis B and C before giving blood to the patient. Is every blood donated around the world tested for hepatitis B and C? What is Hepatitis B and Hepatitis C? Hepatitis means inflammation or swelling of the liver. It can be caused by a virus attack, excessive alcohol consumption, medication or other reasons. In terms of blood circulation, Hepatitis B (HBV) and Hepatitis C (HCV) are considered the mos...