<prompt> Translate the following text to EnglishKwa kuwa wanariadha bora ni lazima kuchukuliwa kutoka sekta ya afya ya idadi ya watu, kwa ujumla bora mfumo wa huduma ya afya ina maana kubwa pool ya watu kuchota kutoka.  <response>: Since top athletes inevitably are drawn from the healthiest sector of the population, a generally superior system of health care means a bigger pool of people to draw from. 