The world is a smelly place , and we often are sweep over with the smell of BO in a gym switch room or the minty insolence of someone ’s breathing space . That is because humans have great nose – maybe not as great as other animals , but it is better than you maythink . In one report from2014 , it was bring out that man can discriminate over a trillion scent .

Despite have hard - work noggins , humans can become desensitized or nose unsighted to a particular aroma . It is known as odor tiredness . Our sense of smell is just so exhausted by all the familiar odour that it adjudicate to stop notice it .

There have beenstudieswhere mass place tune fresheners in their suite , and after a few days , they can no longer sense that tropical summer cinch scent .

“ What seems to befall in long - terminus adaptation is that the sensory receptor that would normally react to these smell almost turn off after being bombarded for a few weeks , ” Pamela Dalton , psychologist at the Monell Chemical Senses Center , distinguish theWashington Postin 2016 .

“ You do n’t see that in vision or hearing . you may be accommodate to a sound or sight , but generally the scheme recover pretty cursorily . The fact that it takes two or three week to regain sensitivity is very alone . ”

There are cases when people may be able to reek themselves , this is because we are so attuned to our unique body olfactory sensation that any slight change can be a minute like a slap in the face . Such as , if you have had a sweat - fill day , now and again you may get the feel of BO drifting to your nose receptor . Although , caution must be express , if you catch a sudden smell of yourself , it is probable to be extremely more pungent to strangers nearby .

It is not entirely understood why nose blindness happens to humans . However , if you want to smell yourself once more , there are slipway to overcome this . This may include smelling your clothes off from your body , flow clear hands along your scalp and smelling your fingertips , and doing some breath tests like the classic handwriting test ( where you nurse your hand up to your face and give it a good sniff ) .

Or , if you have some close and trusted friends , you’re able to always ask them if you smell .

[ H / T : livescience ]