For me it differs from day to day. Some days I'm just on a roll and end up coding until 8 or 9pm. But most days my brain gets tired, and there are certain red flags that help me realize when this is happening:
Making no progress on a problem for over 30 mins
Trying code changes randomly instead of carefully debugging
Reading my company's internal wiki / Stack Overflow / documentation and having to reread paragraphs because I'm not absorbing the ideas the first time
Finding myself switching back to Twitter or IM every 45 seconds
These are just some examples of red flags I often notice that signal my brain is getting tired. You have to find what works for you.
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For me it differs from day to day. Some days I'm just on a roll and end up coding until 8 or 9pm. But most days my brain gets tired, and there are certain red flags that help me realize when this is happening:
These are just some examples of red flags I often notice that signal my brain is getting tired. You have to find what works for you.