12 Effective Tips For Better Sleep As A Busy Professional
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Use math! A sleep cycle is 90 minutes. So, always plan to wake up at the top (versus bottom) of a cycle. If I need to be somewhere at 7 a.m., I'll have to ...
via Math Tips
Use math! A sleep cycle is 90 minutes. So, always plan to wake up at the top (versus bottom) of a cycle. If I need to be somewhere at 7 a.m., I'll have to ...
via Math Tips