vary with ages meaning in Chinese

随着年龄的不同而不同

This is because the demands on a kidney vary with age
这是由于人体对肾脏的要求随着年龄的不同也有所变化。
Results the somatotypes means and the somatotype distributions and somatotype components varies with age
结果体型及体型三因子随年龄而变化，并存在性别、城乡差异。
On average we need around eight hours of sleep a night , but this varies with age , with older people needing less and adolescents needing more
其实，我们平均每晚需要约八小时的睡眠，不过会因年龄而改变，好像老人家一般需要较少睡眠时间，相反地，年青人就需要较多睡眠。