… would be wiped out for days. Not even just one day, two days, three days. I didn't know I could even be that low.” On the other side were women who saw negative … doses (e.g., exercise aerobically three times per week for 30 minutes) and don’t allow much wiggle room or guidance on adapting this exercise dose into daily life. … survivors living with cancer related fatigue are facing,” concludes Wechsler. “We know what's best. We know exercise works but that can only go so far. We have to know …