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No ‘gay gene’: Massive study homes in on genetic basis of human sexuality

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September 13, 2019

There is no gay gene! Very outstanding research that grabbed my attention. Check that out: https://www.nature.com/articles/d41586-019-02585-6

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Youssef Refaat, curios nerd!

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Popular posts from this blog

The suffering that people with cancer live with!

As a student doctor, I have seen many patients who had cancers growing in their bodies and don’t feel it and don’t have any symptoms until it is too late (until the tumor has metastasized to other organs) I have seen a patient who has lymphoma (a type of blood cancer) He didn’t feel anything; he literally had no symptoms, but one day he started to have some symptoms related to his respiratory system like cough, dyspnea, hemoptysis. When he did a chest x-ray, he was found to have massive pleural effusion (water on the lung) due to the tumor metastasized to his lung. He had an x-ray similar to that. Look at the left lung! Not only that but he also, when he was asked to do a CT scan on his abdomen, he was found to have the tumor metastasized to his liver. (Can you see these blackish areas? These are multiple tumor masses growing at his liver) I knew that this patient had a very bad prognosis and he most likely will pass away in a few months. It is very sad to know that. The...

Can someone be born with a penis and vagina together?!

That vaginas are the basis of human life. Not only because without a vagina you wouldn’t have been there, but also because without a vagina, something else wouldn’t have been there as well! Let me explain to you what is it. Did you that at some point in your life you had a vagina? yea vagina! For me, this is disturbing but still fascinating! Reproductive organs in human (whether as a male or female) during fetal life is the same. It is an incompletely differentiated vagina that is waiting a signal from your body to differentiate. If you are a male which means that you have XY chromosomes, genes on your Y chromosome will make this incompletely differentiated vagina turn into the male reproductive system. While if you are a female, this vagina will continue to differentiate more and more until it gives the final familiar shape. Take a look! Unfortunately, there are some unlucky males who have problems with the genes that are responsible for the differentiation of their genital...

Excessive meat consumption and its relation to hypertension and other diseases

August 27, 2020

I am really shocked by the fact that many people think that the more meat they eat, the healthier they get and the better their health becomes! Let's crush this fact in this article. Let’s dive into some details about what can increased consumption of meat do to your body. I will begin with very very basic concepts related to basic physiology in our bodies and later I will show you what does the recent research and trends say. 1- I ncreased consumption of protein (steak) is associated with hypertension due to the effect of protein on our kidney and its ability to reabsorb sodium The topic may seem confusing but I will make it so simple as possible. We all aware that steak is a great source of protein, and all of us need a constant amount of protein to avoid collapsing our metabolic pathways. For now, I will talk about how excessive consumption of just protein is related to hypertension (not mentioning cholesterol and animal fat and their direct negative effect on our health) Meat i...

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