What is a small change that you have incorporated into your routine that has made a positive impact on you?

Drinking more water has stopped my headaches. I very rarely get a headache anymore.
Also exercising daily even for 30 minutes has improved my mood overall.
What is a small change that you have incorporated into your routine that has made a positive impact on you?
What is a small change that you have incorporated into your routine that has made a positive impact on you?
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