One: baldness.

No doctor can get rid of the fear of baldness. If time is a butcher's knife, then knowledge is a razor, staying up late to do experiments, writing papers and doing projects. Stress skyrockets, endocrine disorders. How can you not be bald?

Second, it is difficult to send papers.

A considerable part of the reason why the doctor's road is difficult is that the thesis is difficult to send. "I didn't dare to pay a New Year call to my tutor until I finished my thesis." This is no joke.

Doctoral degrees in science and engineering in 985 universities in China generally require two SCI papers, and the requirements for humanities and social sciences will be appropriately reduced. Generally speaking, at least two short papers should be published in the highly competitive C magazine, plus a graduation thesis of 654.38+ million words, and graduation can only be achieved through defense.

Three: Yan bi

According to the latest data, the delay rate of doctoral students in China was 65.67% in 20 17 years. In recent years, although the enrollment of doctoral students has increased every year, the delay rate is also rising!

Statistics show that 45% of doctors have sought help because of anxiety or depression.

But the step I took when I was a doctor was basically the existence of "other people's children" in the eyes of outsiders. At this time, it is not so easy to drop out of school, so we can only stick to it, so the news of doctors committing suicide due to depression is not uncommon.

Four: more than 30 years old, single mother, fetus.

Every day, I am addicted to my studies. When my parents and family members start to urge marriage, my friends, classmates and children around me can play soy sauce, only to find that they are all in their thirties, and there is a mother's child flying solo.