NEwsVIEwsEXERCISEAfundamentalpremiseinHigh-intensityexerciseexercisebiologyisthatimposingtraining—toomuchofagoodthing?agreatermetabolicloadwillaugmentacuteexerciseJohnA.HawleyandDavidJ.BishopresponsesExercisetrainingcaninducerobustchangesinmitochondriathatarebeneficialforarangeofmetabolichealthoutcomes.However,arecentweek3(thehighesttrainingload),therewasstudysuggeststheremightbeanupperlimit...