why

Biopsy: How to extract tissue and why

What is a biopsy? A biopsy is the removal of a tissue sample. The aim is to discover and diagnose pathological changes in the cells through precise microscopic examination of the sample obtained. A small piece of tissue (less than one centimeter) is sufficient for this. The piece of tissue removed is called a biopsy … Biopsy: How to extract tissue and why

Why do we Sleep?

On average, we humans sleep between seven and eight hours every night – oversleeping about a third of our lives. Time that could be well used for other things, but without enough sleep we feel tired and battered. But why do we need to sleep at all? This is a question that has not yet … Why do we Sleep?