girls breathe heavily mostly during sex.Female copulatory vocalization ("FCV") is the tendency of some female primates, including human women, to vocalize in specific ways during sexual intercourse and related sexual activity to express sexual pleasure and to excite their sexual partners as well as potential sexual partners. While males vocalize sexually as well, females typically do so much more frequently. Among women, FCV may take verbal and non-verbal forms including breathing heavily, moaning, crying out, screaming, "talking dirty", crying, and laughing. Researchers have noted that in at least some species, (for instance, Chacma Baboons), the particular vocalizations used are unique to sexual activity
breathe heavily = gasp, huffing and puffing, breathing, labored breathing, hyperventilation
because of oxygen,nitrogen
Pant.
I don't really know
no
to.pant.
Jesse breathed heavily after running around the bases>
Heavy breathing can be a sign of many things, including that she may be in labor and ready to have her foal. Heavy breathing most commonly means the horse is uncomfortable or has exercised heavily. Mares who are in labor will breathe heavily. Mares who have a foal inside them that is in an awkward position will also be uncomfortable and sometimes breathe heavily.
Because they are tired ...
everyone and everything breaths heavy in their sleep
If she begins to breathe heavily and has a big stomach, eats alot and runs on the wheel also!
Which spelling you use depends on which part of speech you're using--"breathe" is for the verb, "breath" is the noun. So you breathe heavily after a ten-mile run, but your breath fogs up the window on a cold day.