These glands become activated immediately to psychological stress or to an “event”. Eccrine glands occur over most of your body and open directly onto the surface of the skin. In fact, the thick secretions from our apocrine glands don’t smell very much on their own. "Mayo," "Mayo Clinic," "MayoClinic.org," "Mayo Clinic Healthy Living," and the triple-shield Mayo Clinic logo are trademarks of Mayo Foundation for Medical Education and Research. Figure 1: Apocrine Sweat Gland The secretions of apocrine glands are responsible for body smells. Causes of Body Odor Bacteria. This condition may contribute to impairment in an individual's psychosocial functioning. 8th ed. Goldsmith LA, et al., eds. New York, N.Y.: The McGraw-Hill Companies; 2012. http://www.accessmedicine.com. Apocrine glands release a thick fluid that smells when it mixes with the bacteria on the skin. They do however have apocrine glands elsewhere in the body. And that's where the odor … For most mammals, however, apocrine sweat glands secrete an oily (and eventually smelly) compound that acts as a pheromone, territorial marker, and warning signal. That doesn’t mean they sweat less — eccrine glands, the other main type of sweat gland, are a thousand times more numerous on most bodies, and Asians have plenty of them. This content does not have an English version. International Journal of Cosmetic Science. Body odor is present in all animals, including humans, and its intensity can be influenced by many factors. Accessed July 7, 2016. Apocrine glands produce the majority of "smelly" sweat. The eccrine sweat gland, which is controlled by the sympathetic nervous system, regulates body temperature. Hyperhidrosis is a medical condition characterized by excessive sweating. Eccrine sweat glands … When you have apocrine bromhidrosis, body odor is the byproduct of lipid-rich apocrine gland sweat mixing with skin bacteria. There are two types of sweat glands – eccrine and apocrine: 1. Apocrine glands are found in limited regions on the body, most densely in the underarms. The two main types of sweat glands are eccrine glands and apocrine glands. Thus, the sweat produced by the apocrine glands in adults is the cause for the foul smell. Bacteria thrive in moist environments, like your armpits. Some people naturally sweat more or less than other people. Despite the evolutionary role that body odor … Weird & Wacky, Copyright © 2021 HowStuffWorks, a division of InfoSpace Holdings, LLC, a System1 Company. The eccrine gland sweat is what develops when you’re hot since the gland secretes a fluid mostly made up of water and salt to cool your skin down. WebMD writes, “If your skin is dry, it’s harder for bacteria that … The sweat that we produce when we work out is mostly comprised of water, but the sweat that comes from the apocrine glands has a higher concentration … Another common cause of body odor is stress, because when you stress excessively, your apocrine glands switch on, and this excess sweat on the body can lead to odor. Christof - Now fresh apocrine sweat doesn’t actually smell that bad, but it’s more oily than eccrine sweat, and critically it wets regions that are rich in bacteria and odorants. Apocrine bromhidrosis is the most common type of bromhidrosis. Thankfully, there are a number of simple remedies. 9 Causes of Smelly Sweat The cause of body odor varies from person to person. Sweating and body odor are facts of life for most people. When bacteria on the skin break down this sweat, body odor is the result. When secretions from the apocrine and sebaceous glands mix with the watery sweat of the nearby eccrine glands, the diluted secretion flows over the surface of the axillary skin and hairs. When you have apocrine bromhidrosis, body odor is the byproduct of lipid-rich apocrine gland sweat mixing with skin bacteria. Shirasu M, et al. The characteristics of body odor change with the amount of sweat produced. You've developed a … This odor is primarily determined by skin secretions, bacteria on the skin and, to a lesser extent, diet and environment. If you’re wondering why does sweat smell, then blame your apocrine glands. Although there are far fewer apocrine glands than eccrine glands, they produce a thicker oilier substance that … Body odor has a strong genetic basis, but can also be strongly influenced by various diseases and physiological conditions. Eccrine glands cover most of the body and produce sweat primarily consisting of electrolytes and water, which cools the body when it evaporates from the skin.. Apocrine glands are found in the groin, hands, feet and underarms. The characteristics of body odor change with the amount of sweat produced. Apocrine sweat glands, which are associated with hair follicles, continuously secrete a fatty sweat into the gland tubule. The natural smell of stench, or body odor, originates from typical skin microbes separating the sweat emissions discharged from the perspiration organs. Excessive Sweating. Apocrine Sweat Glands. Smith CC, et al. Accessed July 6, 2016. The key difference between merocrine and apocrine sweat glands is that merocrine sweat glands excrete sweat directly onto the surface of the skin opening out through the sweat pore while apocrine sweat glands secrete sweat into the pilary canal of the hair follicle without opening directly onto the surface of the skin.. Glands are a type of organs that secretes … Otherwise, lifestyle and home treatments can usually help with normal sweating and body odor. High levels of 5alpha-reductase activity have been detected in human apocrine glands, and the concentration of dihydrotestosterone has been found to be higher than that of testosterone in the nuclear fraction of the skin of patients who suffer from excessive or abnormal odour derived from apocrine sweat (osmidrosis). Eccrine glands are found over your entire skin. These coiled glands are found in the lower layer of the... Apocrine Glands.    Being sensitive to … The scent of disease: Volatile organic compounds of the human body related to disease and disorder. For example, one is more likely to have bad body odor due to profuse sweating in hot and humid summers. Apocrine sweat glands open into the upper portion of a hair follicle instead of onto the skin's surface. It also makes sense that ‘Native’ Americans would have fewer apocrine glands than Caucasians and Africans since they split off of East Asians around 10-15 kya. It turns out my body odor, ... Puberty is awkward as it is but combined with tween hormones pumping out of my sweat glands, ... "Stress stimulates the activity of glands known as apocrine glands… The Mayo Clinic has a good explanation for why stress does actually make us sweat in a specific way that can increase body odor. These are found mostly in your underarms area, genital area, and on your feet. This is where the bacteria come in, says Thomas. This unique fragrance can be traced to the apocrine sweat glands, which have all but disappeared in the human, surviving only in a few limited areas such as the axilla, genitoinguinal region and the nipple. Heavy perspiration and body odor can happen when you exercise, when you're too warm, or when you're nervous, anxious or under stress.Your body has two main types of sweat glands, and they produce two very different types of sweat.