Lack of sleep and short temper

The lack of sleep last night made me short-tempered. Having an enough sleep seems to be more important than I've thought for my mental health.

I stayed up one hour later than usual hoping to sort out a problem of a study web program I made recently. I walked up at 5am and had a cup of coffee. It seemed to me OK because I didn't feel sleepy throughout this morning. I was wrong. I didn't feel sleepy, but I was much easier to be frustrated. I was sorry for my colleagues.

Tiredness after an exercise may affect my temper. When I overwrought on the exercise, I'm likely to become short-tempered too.

Managing my physical and mental tiredness is a key to manage my temper.

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