Adrenal Glands 1 Aging 1 Animals 1 Anxiety 1 Article 1 Brain 1 Catecholamines 1 Corticosterone 1 HPA axis 1 Male 1 Random Allocation 1 Rats, Wistar 1 Resilience, Psychological 1 Running 1 Stress, Psychological 1 Wistar rat 1 adaptive behavior 1 adrenal gland 1 adrenal sensitivity 1 adult 1 aerobic exercise 1 age 1 aged 1 aging 1 animal 1 animal cell 1 animal experiment 1 animal tissue 1 anxiety 1 anxiogenic state 1