When people watch scary movies, why is it they are more likely to have a nightmare afterwards?
Our brain chemistry is exceedingly complex. Also, our emotional state primes our brain with other chemicals. Fear can produce a rush of adrenilne, for example.
So yes, thinking about it 'correctly' changes your brain. Your brain is a chemical reaction, so adding another thought modifying chemical is likely to have different results based on the chemicals already there.
Our brain chemistry is exceedingly complex. Also, our emotional state primes our brain with other chemicals. Fear can produce a rush of adrenilne, for example.
So yes, thinking about it 'correctly' changes your brain. Your brain is a chemical reaction, so adding another thought modifying chemical is likely to have different results based on the chemicals already there.