Physical activity, but not environmental complexity, facilitates HPA axis response habituation to repeated audiogenic stress despite neurotrophin mRNA regulation in both conditions.
Nyhuis TJ, Masini CV, Sasse SK, Day HE, Campeau S. Physical activity, but not environmental complexity, facilitates HPA axis response habituation to repeated audiogenic stress despite neurotrophin mRNA regulation in both conditions. Brain Res. 2010 Nov 29; 1362:68-77.