You save your energy for important decisions:
Without even realizing it, we are prompt to make many decisions for unimportant stuff in a day. We are continually making choices: what to eat, what to wear, what task to take on first, what music to listen to, what to respond. The average adult makes about 35 000 decisions in a day, which is pretty astonishing if you will. Keeping the same routine every day allows you to avoid some decisions by achieving a state of flow
If you always work out at the same time of the day, you will not have to wonder if you should or should not go to the gym after work. You will get used to it and act unconsciously.
By saving mental energy, you will be able to focus on more important decisions, whether it is related to your career, your relationship, a specific project.
You get in tune with your body:
Our bodies thrive on routines.
As you develop one, you will get a sense of how your body and mind prefer to function. Considering that, you can arrange your rituals to fit your needs best.
Are you more productive in the morning, or just before dinner? When is your creativity level at its best? Does exercising first thing in the morning gives you energy? Or do you prefer to exercise right after work because it allows you to disconnect from the work day?
Should you avoid to eat a couple of hours before going to bed?
Does going to bed at the same time every day helps you fall asleep faster? Try keeping up with a consistent routine every day and listen to your body. Modify your habits according to it.
You are less likely to fall into negative thinking:
When you organize your tasks and actions, your mind is less likely to start wandering through negative thinking.