thwart
01-10-2013, 11:06 AM
Took 3 wks for exercise induced positive changes to go away:
http://well.blogs.nytimes.com/2013/01/09/to-keep-the-brain-benefits-of-exercise-keep-exercising/
Rats given access to a running wheel, toys and other types of environmental enrichment were able to use serotonin, a neurotransmitter involved in anxiety and other moods, more efficiently. After several months of exercise, the exercised animals became noticeably less anxious and more resilient to stress during behavioral testing. But that savoir-faire dissipated rapidly if they were removed from the cages with running wheels and toys.
In their latest experiment, also presented at the Society for Neuroscience meeting, the researchers reported that after 10 weeks of running, followed by three weeks of inactivity, the running rats’ brains were almost indistinguishable from those of animals that had never exercised. They had almost comparable levels of an enzyme in the brain that affects the synthesis and uptake of serotonin. It was as if they had never run.
http://well.blogs.nytimes.com/2013/01/09/to-keep-the-brain-benefits-of-exercise-keep-exercising/
Rats given access to a running wheel, toys and other types of environmental enrichment were able to use serotonin, a neurotransmitter involved in anxiety and other moods, more efficiently. After several months of exercise, the exercised animals became noticeably less anxious and more resilient to stress during behavioral testing. But that savoir-faire dissipated rapidly if they were removed from the cages with running wheels and toys.
In their latest experiment, also presented at the Society for Neuroscience meeting, the researchers reported that after 10 weeks of running, followed by three weeks of inactivity, the running rats’ brains were almost indistinguishable from those of animals that had never exercised. They had almost comparable levels of an enzyme in the brain that affects the synthesis and uptake of serotonin. It was as if they had never run.