In humans and mammals two types of adipose tissue or fats are present. Brown fat is mostly found in infants and hibernating mammals – white adipose tissue or white fat is common in adults. One of its functions is to store the extra calories, nutrients and energy and it is also responsible for ever expanding waistlines, muffin tops, love handles and bulging thighs.
In contrast, brown fat expends energy in the form of heat and it is crucial for maintaining body temperature in newborns and hibernating mammals. Brown fat takes up very little space and until recently it was believed that adults had very little or none. With most brown fat cell disappearing as we get older – this explains why our metabolisms also slow down with age.
We know now that brown fat is stimulated by a signal sent to the brain to increase circulation and to release white fat when there is a change to cold temperatures.
One way to activate the brown fat cells is to gradually turn off the hot water towards the end of a shower and to spend another 30 seconds letting the cold water invigorate your neck and shoulders. This will stimulate the brown fat into action and assist in the breakdown of the unhealthy white fat accumulated in all the wrong places.