What happens to the baby when there is Hypoxia during labor and delivery?

Unfortunately,  hypoxia often affects the most sensitive and delicate part of a baby,  their brain.   Hypoxia can cause permanent brain damage when brain cells die because of lack of oxygen.  The longer the hypoxia lasts,  the greater the degree of brain damage.  That is why is it so important to take action when hypoxia is seen on the fetal monitor machine.