Do you know that if a guy or a lady next to you suddenly sneeze for no reason, it could be he/she is having naughty thoughts? Yes, it is called sneeze arousal. Well, it may sound ridiculous or funny but it’s true for some men or women.
According to Wikipedia, this phenomenon was first noted back in 1897 in John Noland Mackenzie’s remarks before the British Medical Association at a meeting in Montreal. In 2008, two British doctors, Dr Mahmood Bhutta and Dr. Harold Maxwell performed the first in-depth investigation of this rather amusing phenomenon.
There are two possible reason why some people experience sneeze arousal. Firstly, there is this nervous system called the autonomic nervous system, which controls things like our heart rate and the amount of light let in by our pupils. And this nervous system is beyond our control. Sometimes the signals in this system get crossed, and he thinks this may be why some people sneeze when they think about sex.
The second possible reason could be the existence of erectile tissue in our nose. When one is in the stage of arousal, the tissue become engorged, thus triggers a sneeze.
Similarly, there is another phenomenon called honeymoon rhinitis. Another strange condition in which the sufferer experiences nasal congestion during intimacy.