Health Health


Why do we have heartburn

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Why do we have heartburn Heartburn has been encountered by almost everyone throughout his lives. If this is an isolated case, it is not necessary to solve the situation in any way. However, if it is a chronic condition, it is advisable to see a doctor. It can be a serious disease, which in extreme cases can result in difficult-to-treat esophageal cancer. But why does heartburn occur in the first place and can we do something about it? Read more

Why is O a universal donor

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Why is O a universal donor From an early age, we can usually name blood groups and we know that the AB group is a universal recipient and O is a universal donor. We later find out that there is a Rh system that also plays an important role not only in blood transfusions. In fact, we know 39 blood systems to this day. Why hasn't anyone told us about the others and is O really universal donor? Read more

Why do muscles grow

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Why do muscles grow When we talk about muscle growth, we often think of a person going to the gym, lifts heavy dumbbells, drinks protein drinks, maybe even takes a photo in the mirror and occasionally uploads the photo to one of the social networks... but seriously, is this the only possible way of muscle growth? What really happens to muscles during physical exercise? Read more

Why do we breathe

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Why do we breathe Usually we are not aware of breathing. The respiratory muscles automatically work to absorb the new air and remove the old one. We exchange breathing gases, without which we cannot normally survive even a few minutes. But why do we breathe in the first place? Read more

Why do we have dandruff

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Why do we have dandruff Dandruff is the dead part of the skin on the head, or other parts of the body, which differ from the normal death of the skin in size and possibly other accompanying effects such as itching. About half of the adult population, more often men than women, suffer from dandruff, and several false myths circulate around them. What are the predispositions to dandruff and can we get rid of them at all? Read more

Why do we have cancer

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Why do we have cancer Cancer is a group of diseases that cause abnormal cell growth and have the ability to attack other parts of the body. Formerly a rather rare cause, today it counts for more than 15 % of deaths. Why are there so many cases of cancer today and how can we avoid it by our own choice in most cases? Read more

Why do we have the flu

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Why do we have the flu Every year, we hear in the news that a flu epidemic has broken out. Some of us go to be vaccinated preventively. Many of us have never had the flu in our lives. From the news we sometimes hear terms like bird flu, swine flu, H5N1. But if we are not directly affected, we will usually lose interest in the topic soon. But why does the flu even exist? Is it with humans from the dawn of their existence, or does it have a beginning in the human population? Read more

Why to become a vegan

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Why to become a vegan Veganism has been a growing trend for a long time. Today, its expansion is so great that not only do almost all restaurants offer some vegan food, but there are also many restaurants, chains and shops that fully focus on this trend. But what are the reasons that lead people to become vegans? Read more

Why is sugar harmful

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Why is sugar harmful Sugar is said to be the most common drug in the world. We find it in sweets, we add it to coffee or tea, it plays an important role on holidays such as Christmas, and we even consume it in foods where we would not even expect it. Many food manufacturers artificially add it to their products to make people enjoy the products more, and retailers sell them more. But for centuries, sugar in Europe was considered a luxury commodity that only the richest of the rich could afford. How is it that sugar is so cheap and widespread now? What are the hidden threats to its excessive consumption? Read more

Why do our teeth go bad

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Why do our teeth go bad Up to 2.3 billion people suffer from tooth decay, which is about 32 % of all people on Earth. Tooth decay is mainly associated with poor people who do not have access to proper oral hygiene. However, this cannot be said about the Czech Republic, where up to 80 % of people encounter tooth decay during their lives! So, what causes tooth decay? Why do our teeth go bad? Read more