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 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...

 When followers overshadow morality Recently, a man known on social media as ‘Nepali Bro’ murdered his wife. This incident shocked everyone. Not thousands, but millions of people used to watch his content, react to his videos, and many saw him as an influential figure . But this incident has once again raised a serious question, ‘Are we making the mistake of considering the image we see on social media as the real person? What is the basis for us to know someone? His character, behavior and values ​​or the popularity of his social media?’ He was a familiar face on social media. His videos used to go viral, people followed him, and his statements were quoted. But there is not always a correlation between a person’s popularity and his moral character . Social media shows us the edited, decorated and publicly displayed appearance of a person, but not his private life, behavior towards relationships, ability to control anger or human sensitivity. What is even more interesting is that...

 Why does milk come out of the mouth as well as the nose when a child vomits? Young children cannot express their problems to their parents verbally. In such a situation, parents should observe the child's behavior and guess his problem. Many children vomit while drinking breast milk. There can be many reasons for this. This is also a sign of poor digestion. The child's digestive system is developing at this time. In some cases, the child vomits many times due to gastroesophageal reflux. However, sometimes the child can spit out milk from both the mouth and nose when vomiting. In this way, parents can panic when the child spits out milk from the nose. In such a case, what is the reason for the baby to spit out milk from the mouth and nose when vomiting? 'Overfeeding' when feeding too much milk at once This problem can appear if the child is fed more milk than necessary many times. Their small stomach cannot hold that much milk and the child vomits and spits out excess m...

 What happens in the body when we laugh out loud Laughter is an integral and natural part of human life, which gives us joy, excitement and lightness. It is not only an emotional expression, but it also has a profound effect on our physical, mental and social health. Various studies have shown that laughing out loud activates various biological and psychological processes in our body, which in turn benefits our overall health. What changes occur in the body when we laugh out loud? What are their scientific bases and what are the effects they have on our lives? 1. Release of chemicals in the brain When we laugh out loud, our brain releases various chemicals (neurotransmitters), which improve our mood. Chemicals such as dopamine, serotonin and endorphins increase during laughter. Dopamine gives us a feeling of pleasure and happiness, serotonin reduces stress and stabilizes mood, while endorphins act as natural painkillers. According to a study by the Mayo Clinic, laughter helps reduc...

 What to look for when buying food in the market? What to look for when buying goods in the market? Almost everyone looks at the date on which the goods are put out and the specified fee. But looking at these two alone is not enough. If you want to avoid buying inedible items that are spreading like wildfire, you should check whether the information about the food is mentioned or not when buying any goods. Only the material that mentions information about the food is considered quality. Such information is called a food label. Why is it mandatory to look at the food label? With increasing marketization, many packaged and packaged processed foods are being sold and distributed in the market. Such foods are mouth-watering in taste, and salt, fat, and sugar are used in large quantities to increase their taste. The general public is attracted to it because it does not take much time to prepare and can be eaten directly after opening the packet. Preservatives are also used to preserve t...

 What precautions should be taken when going for a morning walk in winter? Exercise or morning walk is very beneficial for health. But it is said that it is harmful to go out for a morning walk in Kathmandu in winter. In winter, colds are common in the morning. The harmful particles in the air are fine carbon monoxide, carbon dioxide, sulfur dioxide and nitrogen oxide and ozone, which make the air harmful or polluted. In winter, the wind is less. Due to which the pollution accumulates in one place. In a city like Kathmandu, the cold-hot air column acts as a blanket during the winter season and keeps pollution at bay. That is why the environment is more polluted in winter. Since Kathmandu is shaped like a bowl and the air pollution is high, the air in the morning is also contaminated. In such a situation, doctors say that there will be serious problems in the heart and lungs when going on a morning visit. With the onset of winter, the air flow decreases and cold-warm air forms a lay...

 Why and when to vaccinate a child? Vaccination is an effective achievement of medical science. Vaccination is done to protect the body from any possible disease that may occur in the future. Vaccination protects against possible future diseases. Vaccination is done by injecting the dead or weakened bacteria of the related disease into the human body. White blood cells are activated to produce disease-fighting antibodies. Especially the immune system of newborns is very weak. So they can suffer from even minor diseases. Therefore, they are vaccinated against some diseases that may occur. In particular, to keep children healthy, to protect them from disability, and to prevent them from getting serious diseases, they should complete the set amount of vaccinations. Age-wise vaccination schedule has also been prepared for newborns. In this case, first-time parents should know which vaccines are available for newborns in Nepal and when to administer them. Why wear it? After the child is...

 Threats to human health when pesticides try to protect crops Raju Thapa of Dang's Tulsipur sub-metropolitan city-12 Dokrena has cultivated vegetables on 10 bighas of land. In his farm, which has been cultivated commercially since 2076, vegetables such as Parsi, Golvenda, Cauli are now planted. Thapa had planted 'Gaurav' and 'Chow' varieties of Golva in 3 out of 10 bigha fields. However, the sheep named Chow suddenly died. When the ripening lambs started dying rapidly, he called a technician and administered medicine. But the golbenda plants did not stop dying. Showing the calculation that it cost 10 lakhs to plant this farm, Thapa says, 'If we could have sold all the fruits, we would have earned 18 lakhs. Every year such a problem occurs in some crop. When the problem started, I tried to save the vegetables, even if it was by using pesticides. In Thapa's experience, efforts to save vegetables through pesticides and medicines have become regular and mandator...