The evidence has shown that fasting can cause autophagy which will recycle protein and organelles. However, the extreme fasting may induce the cell death and apoptosis.
Fasting may lower testosterones in males and females. For those who have polycystic ovarian syndrome, this could an alternative treatment. However, it could reduce the reproduction and fertility in males.
Females are encouraged to fast to their cycles. The ovulation phase and a week before period should not fast to keep the menstrual cycles regularly working.
