In Japanese, "朝活(あさかつ)"means getting up early in the morning and engaging in various activities such as hobbies, sports, studying, etc. that help you improve yourself and relieve stress before going to work.
It is common to go jogging, stretching, yoga, meditate, etc. to get your mind and body in shape, or to study Japanese conversation or for qualification exams, read, etc.
There are no rules about what you should do in the morning, so it's a good idea to choose productive activities based on what you recognize as your goals and challenges.