i am pretty sure that it is the last one. Eustress is seemed to be beneficial, and distress is seemed to be the opposite.
Hope this helps :)
Being well!! I hope this helps you...
The endocrine system is one the system in the human body that regulates all the hormones which aids in the normal functioning of the other systems. Therefore, the major functions of the endocrine system include metabolism, and puberty body. Hope this answers your question.