You have correctly spelled hyperventilation.
Tachypnea
They are not the same. Hyperventilation can be a symptom of anxiety.
Yes, hyperventilation is can cause dead things.
Yes, chest tightness can be due to hyperventilation. More specifically is it due to Hyperventilation Syndrome which is a respiratory disorder caused by the psyche.
Some sort of psychological stress can trigger hyperventilation syndrome.
Hyperventilation is breathing that is more rapid and deeper than usual. It can be caused by emotional or physical stimuli. Hyperventilation leads to respiratory alkalosis.
As a sufferer of hyperventilation I would say it does. Not massively though but you can feel the difference.
Hyperventilation raises body pH. Hypoventilation lowers body pH.
No, hyperventilation means increased rate and depth of breathing.
hyperventilation
Hyperventilation which often occurs with panic attacks does not cause death. Hyperventilation can cause fainting due to too much carbon dioxide in the blood. This is why it is recommended to breathe into a paper sack.