It turns out that these are the places where the human body produces pheromones

Have you ever had this experience: walking into a room, although you can’t see or touch it, you always feel that there is an indescribable atmosphere in the air, which makes you feel inexplicably fond of or alienated from certain people? In the animal world, “pheromones” are chemical signals that affect courtship, territory marking and social behavior. So, do mysterious “pheromones” also exist in the human world? How do we “produce” these potential chemical signals? ​

Although research on human pheromones is still ongoing and there is no clear conclusion yet, scientists have locked their eyes on several key parts and secretions of our bodies, which may be the secret source of our “silent communication”. ​

1. Sweat glands: Not just sweating

The human body has two main types of sweat glands: apocrine glands and eccrine glands. ​

Apocrine glands: Mainly distributed in areas such as the armpits, areola and genitals. The fluid they secrete is odorless in itself, but after interacting with bacteria on the surface of the skin, it produces compounds with odor. These odors are believed to be one of the sources of human pheromones. ​

Eccrine glands: ​Distributed throughout the body, their main function is to regulate body temperature, and the sweat they secrete is mainly water and salt, which is generally considered odorless. ​

2. Sebaceous glands: Chemical signals in oils

Sebaceous glands are distributed throughout the body, and the sebum they secrete is mainly used to moisturize the skin and hair, while forming a protective barrier. Studies have shown that sebum may contain a variety of volatile compounds, such as squalene and fatty acids, which are not only involved in skin moisturizing, but may also have the function of pheromones. For example:

Squalene: A natural lipid that may be converted into odorous compounds through oxidation reactions, affecting chemical communication between individuals.

Fatty acids: Certain long-chain fatty acids may release volatile molecules after being metabolized by skin bacteria, becoming potential pheromone precursors.

In addition, the secretion of sebum is regulated by hormones (such as androgens), and sex hormones themselves are closely related to the production of pheromones, suggesting that sebaceous glands may play an indirect role in sexual attraction or social behavior.

3. Special body secretions: They may also transmit “chemical signals”

In addition to sweat and sebum, our bodies also produce some special secretions, which may also quietly transmit chemical information:

Urine: Scientists have detected a substance called “estratetraenol” in the urine of pregnant women, which is likely to play the role of pheromone.

Areolar gland secretions: Special substances secreted around the areola of breastfeeding mothers may guide the baby to find the nipple and stimulate sucking – this is likely to be a pheromone exclusive to humans.

Saliva and breath: Although there are not many related studies, there may be some subtle chemical signals hidden in our breath and saliva.

4. The current status of human pheromone research

At present, the scientific community has not yet isolated and confirmed any clear human pheromone, and fully understands its function and mechanism of action. The human sense of smell and the brain’s perception of odors are very complex, and social and cultural factors may also have an important impact on our interpersonal attraction. ​

Summary

Our bodies naturally secrete substances such as sweat and oil, which may contain special “chemical signals”. Just like animals use smell to transmit information, these invisible “body odor codes” may unconsciously affect our feelings about others, such as being more likely to like certain people. Although scientists have not yet fully understood the mystery, these natural “body perfumes” are likely to play an important role in interpersonal communication.