Saturday, October 24, 2009

fatcells won't dissapear when you lose weight?

Many believe that you are born with a normal amount of fatcells that stores fat.
If you grew obese during puberty, your body will make more fatcells to store fat.
These are facts I read somewhere awhile ago.But what I also read, in contrary to what many believe, is that the fatcells WON'T dissapear (your body won't absorb the exess fatcells that arent used) when you lose the weight/fat.Is this true?
If yes, is there really nothing you can do about this?
(Besides Liposuction)I put this in science/math/medicine, cuz most dietists dont know sh. ( i really mean that)
There is no other field that has so much controverse omongst
specialists than anywhere else (me thinks)
Answer:
To understand fat metabolism, we need to look into some biochemical pathways. The most important is the one involving a nulcear receptor, called PPAR-gamma, which is involved in the response to insulin. Insulin is the hormone secreted by the pancreas, which can detect the level of sugar in the blood and decide whether to store some of that energy into fat. This is why if you eat food with high GI (glycemic index = sugar in the blood), insulin is stimulated and more fat is stored. This first part explains why existing adipocytes become bigger with fat.
However, PPAR-gamma aslo induces the expression of genes (such as C/EBP-alpha) involved into cell division and proliferation, which will stimulate the adipocyte to multiply. This is why the number of these cells can increase.
It is not correct to say that an excess of adipocytes will never disappear. Most cells in the body have a limited life and they could undergo senescence or apoptosis. In both cases, if the cells are not replaced with new ones, you would end with less adipocytes.
Female hormones are known to have a role in adipocyte differentiation and proliferation, this is why pregnancy and (later) menopause can affect a woman's body weight.
The elimination of these cells become more difficult with age - and the metabolism slows down. That's why it is easier to stay slim at a young age. However, a healty diet, excercise (especially "aerobic" excercise, such as jogging, swimming or gentle gym) and massages can help loosing fat cells and keeping the weight down.Hope this helps
WHAT!?! That's crazy. I didn't know. I hope thats not true. I'm going to gain a billion pounds when I have kids, and i want to lose them witth no after affects!
you are born with a certain number of cells, fat and muscle cells, this number wont change, but they can change size.technically fat is not really a cell, it is a deposit of energy. regardless of science, if you eat more calories than you burn, regardless of their make up, you will gain wieght. it is a myth that you get fatter if you give up exercise etc. It is a scientific fact that no energy can be destroyed, the same goes for created. your body can not magically store extra fat, unless YOU are consuming extra calories for it convert to fat and store.
Here, get definitive:www.howstuffworks.com
Fat cells only shrink as you lose weight, they never actully disappear and they are not absorbed by the body. When you are obese, the cells are very large, when you are skinny the cells are very small.
They don't disappear, but they do shrink. Our bodies are evolved to store as much fat as possible. It used to be our survival depended on it.
Yes this is true. The fat cells can "deflate" and you are slimmer, but if you fall off the diet or exercise routine...they re-inflate even faster that you gained before. (Because they are already there)
Yes, I've read that they shrink when you lose weight but don't go away. They're just waiting for more fat to get big again. Maybe that's why so many people lose weight and then just gain it all back again?
That is true.
It's true.It's one of the reasons why keeping weight off is so difficult.
This may be of only a little help, but..
One additive that is fully natural that helps make fat more available for transport round the body %26 use is Lecithin. It is the natural emulsifier (detergent) that will loosen fat %26 allow it to be moved by the blood to where it is needed. If this is taken in conjunction with moderate(i.e.100-120/min pulse) exercise this will help consume fat. ..Providing less is being rediposited!
I believe our bodies were designed for a "need it now" syndrome, so in heavy exercise there is too little time to break down the fat so the muscles must use sugars or start protein stripping muscle fibre. That is why in both long duration sports events %26 cancer the same branch chain amino acids(L,IL,V) are lost %26 need to be replenished if muscle weight %26 strength needs to be maintained.
Very few studies have looked at the life cycle of Adipose cells, that are responsible for storing lipid in the body.However, there is no reason to believe that adipose cells do not under go the usual control mechanisms that regulate many of the cells in the body. Adipose tissue is known to undergo apoptosis, whicvh is cell death under specific conditions and both animals and humans have been shown to be able to lose large amounts of adipose mass, through loss of the lipid contained in the tissue as well as loss of cellularity.What is true is that lipid is lost before cells so in the short term adipose cellularity is maintained. but long term it is highly unlikely that this occurs
arent these fat cells called cellulite? I dont think theres a way to get rid of them without liposuction and i also heard that once you have cellulite then you always have it unfortunately.
what!
Based on what I've read, this statement is not true.
"If you grew obese during puberty, your body will make more fatcells to store fat."The number of fat cells do not change, but they do become bigger when a person gains weight. Diet will make these fat cells smaller, and so will exercise, but we cannot change the number of fat cells that each of us, as individuals, have.
Fat cells only change in size, you need fats in your body to perform vital functions, without them, you would die

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