It's true - mice have brown fat all through their adult lives - it's a small amount, but it has significant effects on their overall metabolism. Up until recently it was thought that humans only have brown fat as infants (to help regulate thermogenesis) and lose it as they get older, but it turns out we actually do retain some. Triggering mitochondria in brown fat to release stored energy as heat could become a weight loss therapy in the future, especially if we figure out a way to trigger the body to make more brown fat (rather than white - they both come from the same precursor cells).
I've seen some metabolic studies that look at it on a bulk (i.e. organism) level and have found little to no scientific evidence to support the "muscle burns more calories than fat" belief that is so common. I suppose it's more applicable when you break it down into specific fat types.
Jmast7:It's true - mice have brown fat all through their adult lives - it's a small amount, but it has significant effects on their overall metabolism. Up until recently it was thought that humans only have brown fat as infants (to help regulate thermogenesis) and lose it as they get older, but it turns out we actually do retain some. Triggering mitochondria in brown fat to release stored energy as heat could become a weight loss therapy in the future, especially if we figure out a way to trigger the body to make more brown fat (rather than white - they both come from the same precursor cells).
The human body isn't designed to live with high amounts of internal heat. See: Malignant hyperthermia.
I remember learning about brownfat in like... first year University. This is old research. I'm pretty sure the whole concept of brown fat wasn't new when I learned it either.
The whole "more brown fat may mean weight loss" thing has been discussed for years.
Nah brown fat exists but it's typically on babies not adults. It's high in mitochondria, thus the color. It's also usually great for storage, so kinda confused about this. Been some natural disasters where babies in a nursery were trapped for a week and found fine due to brown fat.
ShawnDoc
2009-11-02 03:22:12 PM
make me some tea
2009-11-02 03:23:43 PM
DslainteC
2009-11-02 03:29:03 PM
make me some tea
2009-11-02 03:41:52 PM
Jmast7
2009-11-02 04:14:54 PM
yogaFLAME
2009-11-02 05:16:53 PM
Toshiro Mifune's Letter Opener
2009-11-02 06:47:19 PM
The_Sponge
2009-11-02 07:02:06 PM
Samoans
ultraholland
2009-11-02 07:02:51 PM
Hrist
2009-11-02 07:03:03 PM
The human body isn't designed to live with high amounts of internal heat. See: Malignant hyperthermia.
sleep lack
2009-11-02 07:03:16 PM
bring to a festering boil
2009-11-02 07:03:29 PM
jehovahs witness protection
2009-11-02 07:04:10 PM
skinink
2009-11-02 07:05:12 PM
Agent19
2009-11-02 07:05:31 PM
MONSTERTRUCK
2009-11-02 07:05:56 PM
utardsRock
2009-11-02 07:07:23 PM
Pocket_Pitbull
2009-11-02 07:07:32 PM
The whole "more brown fat may mean weight loss" thing has been discussed for years.
Why is this only making news now?
Psumek
2009-11-02 07:07:53 PM
/so yeah...new wonder drug!
Nogale
2009-11-02 07:08:18 PM
/ Stopped clicking a loooong time ago
utardsRock
2009-11-02 07:09:49 PM
/ Stopped clicking a loooong time ago
you quitter!!
Klippoklondike
2009-11-02 07:11:18 PM
ultraholland
2009-11-02 07:11:59 PM
sprawl15
2009-11-02 07:12:02 PM
lordargent
2009-11-02 07:12:06 PM
/don't read headlines too fast