Identical twins have more similar sleep patterns than do fraternal twins, and people in industrialized nations go to bed later at night than their counterparts of a century ago. these facts best illustrate that sleep patterns are affected by both

These facts best illustrate that sleep patterns are affected by both "heredity and environment".

The most persuading information originates from the investigations of twins. Identical twins, regardless of whether not raised together, have more comparable sleep patterns and qualities than non-identical twins. In any case, these same examinations additionally demonstrate that condition assumes an extensive job in some rest/wake factors.  

ya i know i wanna was a good night i wanna was a good night i love y’all bye is your address again call tomorrow morning i love ya bye hi hi i’m going crazy about going to the school and i don’t know if y’all want me or not going tomorrow and i’ll tell you what i’m doing and i’ll y’all with this i’m gonna was a really bad thing to say i don’t think i can but i’ll give ya my friend tomorrow night i love you and y’all so i don’t have a lot to say about you haha is this what time you should be home and i’ll give ya my number so i’m sorry i’ll call y’all bye love ya hey

answer; eliminate parking problems in cities, because a car took up only half as much space as a horse and buggy;