Adults have very little brown fat, babies on the other hand have no other way of producing heat then to use their BAT.
The issue here is, How do humans Grow more brown fat?
This issue is being studied as we speak, since brown fat isn’t something that we have a lot of.
Studies has even shown that people who are “cold adapted” (talking about ice swimmers here) only have small amounts of brown fat, and not always more then NON cold adapted individuals.
So what is the deal with brown fat?
Can we increase it?
Use it better?
The answer to that is YES!
If we learn to use our Brown Fat, the pathways will become active and more efficient.
Brown fat is considered an organ. Brown adipose tissue(BAT) has the job of burning calories and to make physical warmth out of fat (thermogenesis).
It is not all about the Amount we have in our bodys, it is about how well we can use it!
By doing the steps i will give you below you will give yourself and your Brown Fat Organ a chance to become it’s BEST!
You will open up the pathways, and promote irisin stimulation.
Imagine it as if you are at the Gym and is about to be lifting wheights… The more the muscles are used to lift, the better the central nerves system recognizes what needs to be done and helps the lifting.
For those who are to lazy to read the articles, Your QUICK FIX in the BROWN JUNGLE:
- TAKE COLD SWIMS DAILY:
Daily cold exposure increases the volume of metabolically active BAT,
it also increases its oxidative capacity and therefore its contribution to cold-induced thermogenesis.
- EXERCISE: (recent findings have shown a group of novel activators that act independently of the stimulation of the SNS such as cardiac natriuretic peptides, irisin, interleukin-6, β-aminoisobutyric acid and fibroblast growth factor 21 that could influence BAT metabolism)
- EAT OMEGA-3 EVERY DAY:(Omega-3 fatty acids enable the adaptive thermogenesis in mammals’ brown adipose tissue,)
The researchers tested human fat cells taken from biopsies of the neck area. This region is rich in “brown-like” or beige cells, which develop within white fat.
Treatment with a chemical precursor of irisin and/or FGF21 caused the cells to burn energy, release heat, and adopt molecular characteristics of brown fat cells.
These changes were not noted in fat cells taken from other regions of the body that tend to be rich in white fat.
The team next looked at the impact of cold exposure on irisin levels.
The participants rested in water-infused thermoblankets that were gradually cooled from 80 to 53°F.
The participants’ energy expenditure increased 48%. While their core temperature was maintained, their skin temperature dropped.
Measurement of muscle activity via electromyography showed an 88% increase in the 7 participants who shivered and a 13% increase in those who didn’t.
Irisin secretion increased proportionally to shivering intensity. The increase was similar in magnitude to the exercise-stimulated secretion.
The team also found that the secretion of fibroblast growth factor 21 (FGF21), a hormone associated with brown fat activation, was affected by exposure to cold.
The study shows that Omega-3 fatty acids enable the adaptive thermogenesis in mammals’ brown adipose tissue,
receptor GPR120 for the Omega poli-unsaturated fatty acids enables the activation of brown adipose tissue.
Brown adipose tissue(BAT) is to burn calories and to make physical warmth out of fat (thermogenesis).
However, a recent study has defined that brown adipose tissue also acts as an endocrine organ and can secrete factors that activate fat and carbohydrates metabolism.
The most known factors up to now are FGF21, neuregulin 4 and interleukin-6.
Omega 3 for building brown fat: https://www.sciencedaily.com/releases/2016/11/161121112311.htm
Oxidative capacity of brown fat: https://www.ncbi.nlm.nih.gov/pubmed/24423363
Development, function, potential: http://www.nature.com/nm/journal/v19/n10/full/nm.3361.html
exercise and BAT:https://www.ncbi.nlm.nih.gov/pubmed/2555143