Like oxygen, we can also inhale nitrogen. Nitrogen is beneficial for health unless it's liquid nitrogen. Nitrogen helps us dissolve food waste to prevent deadly diseases from forming. The air we're breathing is mainly oxygen but sometimes we're inhaling nitrogen.
Oxygen and nitrogen
Then Nitrogen you inhale has no use. But nitrogen, from other sources, such as food, helps sperm production.
One balloon full? Nothing. We breathe Nitrogen constantly. It is only when you increase the proportion inhaled in comparison to Oxygen does it begin to have an effect. A constant stream of Nitrogen would suffocate you.
As far as I know, it is. Plants "inhale" nitrogen for the process of photosynthesis, then they "exhale" the oxygen that we breath in.
Carbon dioxide and water vapour.
If we were to inhale pure nitrogen, we would obviously die from lack of oxygen. Otherwise no, you have to understand that 70% of every breath you take is nitrogen
Nitrogen, close to 80 %.
One cannot help but inhale a certain amount of nitrogen with every breath, due to its high concentration in the air. However, nitrogen is not used as extensively by the body as oxygen, and thus most of what is inhaled is then exhaled back into the atmosphere. Oxygen is used all the time in cellular respiration, while nitrogen is less commonly needed.
The percentage of nitrogen remains the same as the amount of oxygen that was used was replaced by the water vapour and carbon dioxide
Percent by volume. Nitrogen is almost insoluble in blood at normal pressures. Oxygen is replaced by carbon dioxide so % nitrogen stays the same.
In air there is 20.98% Oxygen, so that's what we inhale. We exhale 16% of this Oxygen; hence why cardiopulmonary resuscitation is possible.
If present in sufficient quantity it would suffocate a person, as they would be unable to inhale enough oxygen.