Using carbo-loading to increase the store of glycogen seems to benefit only those athletes who engage in aerobic activities that are -
<span>Answer = more than 90 minutes. </span>
<span>Tobacco users contribute to an overall loss of productivity(by taking extra break, being less fit and falling sick)because When tobacco smokers fall sick, the whole society has to pay for this: they would be treated by the heath system, which is financed by the contributions by the whole society, not only smokers</span>
