The brown cells possess an extremely
high number of mitochondria — these cell power stations «burn» white fat by converting it into thermal energy.
Examination under a microscope confirmed that the muscle fibers of the modified mice are denser, the muscles are more massive, and the cells in the tissue contain
higher numbers of mitochondria — cellular organelles that deliver energy to the muscles.
No wonder marathon runners have
the highest number of mitochondria in their cells!
Not exact matches
The darker color that characterizes brown fat is due to the greater
number of mitochondria, which if you remember from
high school biology, is the «powerhouse»
of the cell.
Muscles have fibers which adapt to a
high volume
of repetitions which are a core part
of a standard training regimen, by which the
number of mitochondria inside the blood cells increases.
Both longer duration, moderate - intensity exercise and shorter periods
of high - intensity exercise increase the size and
number of mitochondria inside muscle cells and their efficiency.