Sleep is hard, especially in a world where people spend their time busy and stressed. But not sleeping, in addition to making you less efficient and more stressed, is terrible for your health. Americans currently average 6.8 hours of sleep per night, down an hour from 1942. Four in 10 Americans d...
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Terimakasih sudah berkunjung :D
Sukses selalu dan Salam Hormat :)
*)