Exactly as Title says. This mainly has to do with Byakugan, because many believe activating the Yin Seal will cause the Chakra Points to be restored. Which is completely false. Why? Because once that Chakra point is sealed off, no chakra can pass through it again. The only time it seems it can be reopened is if a seperate source of Chakra is poured into it (such as the Kyuubi giving Naruto chakra during the Chuunin Exams) and healing the Chakra Point. Your own chakra cannot reopen it, because it is simply just normal to your body, not something different. Which is why if Hinata gets the chance to seal off Sakura's Chakra Points, Hinata wins the battle.