Extended-cycle birth control pills involve taking one “active” pill daily for around 84 days before pausing for a 7-day break for withdrawal bleeding. After the break, the person begins taking the ...

One of the fundamental biological processes in life is the cell cycle leading from DNA replication to cell division. While it has been studied for decades and our knowledge has matured, sophisticated ...

Therapists and other experts often talk about abuse as something that happens within a clearly defined cycle. But what is that cycle, exactly? For decades, many experts relied on the cycle set forth ...

The Krebs cycle, also known as the citric acid cycle, is a series of enzymatic reactions that releases energy from stored carbohydrates, fats, and proteins. The Krebs Cycle was first proposed by Hans ...

Some people naturally have shorter menstrual cycles than others. However, very short cycles can sometimes indicate an underlying health condition, or another type of vaginal bleeding. The menstrual ...