There are two types, brown and then white. The most well-known type is white, which makes up most of the body’s fat. White fat, which is the main type of fat in our bodies, can be used as a storage place for excess calories. It also acts as insulation and creates inflammation. Brown fat is a healthy form of metabolically-active fat. Brown fat is called such because it contains lots of energy-generating mitochondria that give rise to the color. Brown fat can be considered “good” as it produces heat and calories. You can see https://publicsource.net/the-ultimate-guide-to-brown-fat/ for more information.
The body can regulate its own temperature via complex brain-hormone interactions. An increased metabolism leads to a higher temperature. It’s akin to driving an engine. The more you run it, the hotter it gets. The hormones that improve metabolism actually increase thermogenesis. Low body temperatures indicate lower metabolism, which can be an indication of low thyroid function. Brown fat is more common than white because it causes a higher body temperature. They also have a higher metabolism, as they consume more calories to make body heat.
Brown fat creates a special blood protein called “thermogenin” that allows for body heat production. The nerves and stresshormones that control brown tissue are responsible for controlling it. The stress hormones epinephrine (and norepinepherine), which are released from nerve cells, the adrenal gland, activate brown tissues, increasing thermogenesis.
Brown fat is found in newborn babies at the highest concentrations. However, this was previously thought to be true for adults. Scientists discovered that brown fat was present in adults in 2009 This discovery was a significant medical breakthrough, and was published in The New England Journal of Medicine. The body has less than one percent brown fat. The most brown fat is found in the neck, shoulders, and collarbones. It is also hidden beneath deeper layers of fat, with different areas. It is more common in younger people and those who are thinner. While brown fat does disappear as you age and gain weight, it doesn’t disappear entirely. In the past, people believed that once brown fatty tissue had been lost, it would be gone forever. This is obviously not the case. Everybody has the ability to make more.