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Goltsov Sergey
I serve the art of medical doubt
Let's go, then we'll start, or why I started hosting this channel
Let's go, then we'll start, or why I started hosting this channel

All my life, it seemed to me that answers make a person's thinking bigger and at the same time sharper. But over time, I realized that answers are born only where they are preceded by good questions. Not to the textbook or to the authority, but to reality itself — to what we see, but often do not notice. It is often said that human life is short. I am becoming more and more convinced that it can be "lengthened" — not by the number of years I have lived, but by the density of observations. In more detail...

or immediately into the telegram channel from observation to understanding
 

The Eyes of Africa
The Eyes of Africa

I don't remember any names. I don't know who these children have become. I don't know which of them is in school today, who is already working, who is raising younger brothers and sisters, and who has long been swept away by a road that we don't even know exists. But I remember their eyes.

Rwanda. A country that wasn't supposed to survive
Rwanda. A country that wasn't supposed to survive

There are countries that are known to the world for their achievements. There are countries that are known for their tragedies. Rwanda belongs to the second category.

African notebooks
African notebooks

When you first find yourself in Africa, it feels like you're going to see other people. But a few days pass, and it becomes clear that Africa is actually showing you yourself.

Dermatology: from observation to understanding
Dermatology: from observation to understanding

The theory of phenotypic dermatology: technologies and research that are changing the understanding of the diagnosis and treatment of skin diseases.

Third book
Third book

Surprisingly, there are 14 years between these books. That's exactly how long Leo Tolstoy felt one cycle of human maturation constitutes. He had an almost intimate idea of ​​dividing life into periods—conditional periods in which, every fourteen years, a person reaches a new level of understanding.

If, putting aside excessive modesty (briefly and strictly for scientific purposes), we apply this logic to ourselves, a curious picture emerges.

Return to sports
Return to sports

However...s ago, my parents traveled to the Caucasian Mineral Waters. The mountains, the narzans, the clear air, and the long walks... Apparently, this is where my story began. At that time, I was a rather microscopic creature with a tail, but I was probably quite fast. According to biology, the fertilizing speed of a sperm cell is around 25 meters per second. This means that I was swimming much faster than I am now. However...

Ten thousand hours and one reason to be proud
Ten thousand hours and one reason to be proud

On January 4, 2026, it will be exactly three years since I returned to the pool after a thirty-year hiatus...

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A new biomarker in dermatology: the Skin Inflammation Phenotypic Index (SIPI)
A new biomarker in dermatology: the Skin Inflammation Phenotypic Index (SIPI)

Представляю новый интегральный показатель – Фенотипический индекс воспаления кожи (ФИВК), предназначенный для количественной оценки воспалительных и репаративных процессов на клеточном уровне. Далее...

Общие гены — разный путь: кто такие Гереро?
Общие гены — разный путь: кто такие Гереро?

Гереро — одном из самых интересных и стойких народов Южной Африки. Их история переплетена с трагедиями, культурным упорством и необычайной самобытностью. Познакомимся с ними...