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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...

 Why is sex and reproductive education important for adolescents? Many adolescents are afraid of where to go, how to get services, whether there will be confidentiality, and whether their families will find out Why is sex and reproductive education important for adolescents? 16-year-old Sandhya Rai had consensual sex and was forced to have an unsafe abortion after becoming pregnant. Unwanted pregnancies and health problems are increasing due to lack of access to sex education and reproductive health services for adolescents in Nepal. 16-year-old ‘Sandhya Rai’ (name changed) was a 10th grader. She fell in love with a young man in grade 11 at the same school she attended. Both dreamed of getting married after completing their studies. One day, they went to Nagarkot to celebrate the young man’s birthday and stayed there. They had consensual sex. A few months later, Sandhya realized that her menstruation had stopped. After she told her mother, a test was done at the hospital. She was ...

 Why is it harmful to eat litchi on an empty stomach? It is the time of litchi now. Juicy and sweet litchi is popular with children and adults alike. There are many benefits of consuming litchi . Benefits of eating litchi Litchi is rich in vitamin C . Which helps strengthen the body's immune system. Apart from this, it contains fiber, potassium, aluminum and many natural antioxidants. It is very beneficial for the skin, heart and general health. According to scientists, the vitamin C present in litchi helps the body produce collagen . Collagen is a protein that plays an important role in strengthening the skin, bones and blood vessels. The fiber present in litchi helps improve the digestive system. Fiber soothes intestinal problems and relieves constipation. Potassium is considered beneficial for the heart and blood pressure, as it helps maintain fluid balance in the body. In what cases is litchi harmful? Research has found that raw or underripe lychees contain some natural chemi...

 Why do you suddenly wake up at 3 am? Here's the scientific reason The problem of waking up at 3 am is linked to the natural fluctuations of the cortisol hormone , and stress increases it. Many people have trouble waking up suddenly at exactly 3 am or between 3 and 4 am. Some consider it a ghost or an ominous sign, but according to science, it is an important signal related to the body's internal clock and hormones. If you also frequently wake up at 3 am, you should not take it lightly. This may indicate that your sleep cycle is disrupted and stress has increased in the body. The main reason for sleep disturbance at this time of night is the natural fluctuations of the cortisol hormone. Circadian rhythm : Relationship with the body's internal clock There is an automatic 24-hour clock running inside our body, which is called the circadian rhythm, or biological clock. This clock controls when we sleep, when we wake up, when we eat, and when we are energetic. This clock is ...

 Why do people who have never smoked get lung cancer? According to experts, the most important cause of lung cancer is smoking. 80 percent of patients who are battling lung cancer are cigarette and tobacco smokers. But the remaining 20 percent of lung cancer patients are those who have never smoked. Therefore, even people who do not smoke cigarettes and tobacco, do not live in any highly polluted areas, and do not work in any mines are at risk of developing lung cancer. Therefore, we need to know about lung cancer, its causes, and preventive measures. How do the lungs work and how does cancer affect it? The lungs are a part of the respiratory system of the human body. They act as a filter in the human body. When we breathe, along with air, gases such as nitrogen, carbon dioxide, and oxygen also enter through the nose and mouth. The lungs select only the oxygen gas from them and deliver it to the body, and throw the rest of the gas out. Lung cells work continuously. When old cells a...

 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...

 Why are cows being played jazz music? British farmers have started playing classical and jazz music to their cows to improve the quality of their milk. Charles Godby, a farmer from Nuneaton, has been playing radio music to his cows for about a decade. Godby said that music, according to Pavlov's dog theory, mentally and physically prepares cows for milking. A new kind of music has begun to resonate in the green fields of Britain. Farms that used to be filled with birdsong and the sound of tractors are now filled with a slightly different melody. Some farmers have started playing music to their cattle with the aim of improving the quality of their milk. This trend is very viral on TikTok. Such videos have received millions of views. Charles Godby, a dairy farmer living in Nuneaton, UK, has also adopted this new method. He explained why playing music to cows can also benefit others. When did this trend start? This practice has recently come into the spotlight after it went viral on ...

 Why is it important to clean the tongue according to Ayurveda? For good health, it is advised to take special care of oral hygiene. Most people brush their teeth in the morning but do not clean their tongue. In such a situation, if the dirt accumulated on the tongue is not cleaned, people may have problems like bad breath, tongue sensitivity and bacterial growth in the mouth. Which can have a bad effect on oral health as well as overall health and can cause many problems related to it. In such a situation, not only the teeth but also the tongue should be cleaned. Why is tongue cleaning important? According to Ayurveda, ‘Jiba Nirlekh’ i.e. cleaning the tongue is an important part of oral hygiene. Due to improper digestion, toxins accumulate on the tongue. In such a situation, it is very important to clean the tongue every morning. The scraper for cleaning the tongue should be curved without sharp edges and should be made of gold, silver, copper, tin or brass. Nowadays, scrapers mad...

 Why are the bones of Nepalis becoming weak?  Today's generation is very raw. Even if it falls from a small place, it will break. Hands and feet are even weaker. There are several examples of broken legs from the heels that are returned while going down the stairs. Neither fast food, nor agricultural work, nor physical exercise. How can the bones be strong?" You can hear the same from the ancients. They compare the diet, lifestyle, occupation, occupation and habits of the past and present. In their experience, the physical fitness of the current generation is not what it used to be. There is a lot of 'table work' but little physical exercise. They don't even stop walking, they ride a car even for one kilometer. Therefore, the health of this generation is not strong. They narrate the experience of not breaking their limbs even when they fight with a heavy load of grass or fall from a tree to the ground. There will be a lot of grass, firewood and weeds and the walkin...

 Why is meat digested slowly? Who doesn't love meat dishes? There are many people who consider weddings, parties and feasts as incomplete without meat dishes. Meat is also a food rich in nutrients, but it takes a long time to digest. Meat contains elements such as fat, protein, minerals and minerals. Since meat contains a lot of protein, it remains in the stomach for a long time after eating. Because it takes more time to digest protein food than carbohydrate food. To put it simply, it does not take time to digest meat, it takes time to digest fat. Carbohydrates and fiber-rich foods are digested within a few hours, while fat in meat is digested only after bile is released from the liver into the small intestine. There are also different types of meat. The meat is tender, tough, with lots of bones and lots of fat. It is easy to digest the meat of khasi, goat or sheep, while hard, fibrous, red meat takes a long time to digest. Khasi and venison are classified as red meat, while chick...

 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...