descriptive
Analysis v1
Strong Support

After training one arm, both arms become easier to turn on—your brain can activate muscles with less effort, even in the arm you didn’t train.

37
Pro
0
Against

Evidence from Studies

Supporting (1)

37

Community contributions welcome

Training one arm made both arms easier for the brain to turn on, even though only one arm was worked out — the brain got better at sending signals to both sides.

Contradicting (0)

0

Community contributions welcome

No contradicting evidence found