Can Exercise Make you Stress-Resistant and…Braver?

November 29, 2009

Aarmono

Researchers at Princeton University made quite a fascinating discovery. They found that when they compared rats that exercise to rats that don’t, certain neurons responded differently among the rats that exercised.
Here’s what they did.
They put the rats into two groups. One group that was running and exercising, and another one that remained sedentary. After 6 weeks, they made them all swim in cold water, which rats don’t like (who does?).
After the rats swam, they tested their brains, and found that while all of their neurons were activated from stress, the NEW neurons, supposedly the ones created recently after the running began, did not get activated in the rats that exercised.
What does this mean? According to the scientists, the new neurons were the ones created during the period of exercise, and didn’t get activated because they were molded into becoming “stress resistant.” The point being that yes, if humans respond in […]

Original post by rafael@thefitnessadviser.com (Rafi Bar-Lev)

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