Voluntary hyperventilation depresses the respiratory center via the decrease in partial pressure of carbon dioxide which raises cerebrospinal fluid pH.
Repeated deep breaths 5-10 times in rapid succession will allow you to hold your breath for a longer period.
Your breath... that's to easy!
A mermaid has gills on either side of her neck, or her sides. The gills allow her to hold her breath for a long time.
just go to this site and it will tell you a lot of ways to hold your breath underwater.www.wikihow.com/Hold-Your-Breath-for-Long-Periods-of-Time
yes depending on how long
Only if you hold your breath for a REALLY long time, like turning blue.
Practicing!
Yes
As long as a human does less time if they hold their breath
whales an not breath under waterno they can hold their breath under water for long periods of time but come up to the surface for airNo they can't. They take a big breath of air above the surface then they just hold their breath for a long time.
they can hold their breath for a long time
yes or nah
Hippos can't "breath" underwater but they can hold their breath for long periods of time.