Maybe I pushed myself today? I don't know. I'm just very tired right now.
You always want to push yourself, each time a little more, but you should not go so hard that you're excessively tired. I know sometimes I've worked out a particular area to hard, or tried to hard after a period of inactivity, and strained muscles. The key is to start slow, and gradually work yourself up.
On an island where no one lives,
We build a treehouse together.
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