People commonly encounter body odour in public spaces such as buses, gyms, and dancefloors. Specific aromas can reveal information about a person's health, including stress and infectious diseases. Stale beer or rancid beer smell commonly signals tuberculosis because lung-infesting bacteria produce strong odours, often strongest on the breath; some tuberculosis patients emit skin odours described as 'wet cardboard' and brine. Historically, physicians sniffed urine to detect conditions. Highly sensitive noses, or 'super-smellers', can detect complex diseases including early-onset Parkinson's. Evolution may have favored the ability to smell infectious diseases similarly to detecting rotting food.
The pong might have you covering your nose, or reaching for the closest can of deodorant. But if you can bear to sniff it, scientists say the exact aroma can actually divulge a lot about someone. From the unmistakable pong of elevated stress levels, to the stale beer aroma of a tuberculosis infection, your body odour can reveal key clues to your health. And for some 'super-smellers', even complex diseases like early-onset Parkinson's can be detected with a simple sniff.
In fact, a strong odour of stale beer is a common sign of a tuberculosis infection. This is because the bacteria which infest the lungs to create the tuberculosis condition produce a strong odour. Since these make their home in the respiratory system, the smell is often strongest on the patient's breath. However, in some cases, a person with tuberculosis will emanate an odour from their skin which has been described as 'wet cardboard' and brine.
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