A biopsy is a tiny particle of tissue taken by a doctor from a "suspect" place, for example, a tumor, a polyp, which does not heal the sores for a long time. Depending on where it is taken, use different tools.
This phenomenon is already a physiological explanation. After eating, a number of people have a decrease in blood pressure, why they feel drowsiness (the so-called postprandial hypotension).
For sure, each of us at least once in his life suffered from insomnia. Perhaps it was the night before the exam or before an important meeting, when you tried to go to bed early and get a good night's sleep.
Unconditional indication for the plasty of the upper eyelids is the presence of skin excess. This is manifested by the presence of additional wrinkled skin folds in the upper eyelid, which gives the face and gloom a gloomy, gloomy expression.