He is too hungry to have enough energy for the excercises or better phrased he has too little energy.
If this is to cut down even more on fat, walking should be better to the best of my knowledge burning fat better than weight lifting which builds muscles that than also resting uses more energy from fat cells.
If he is supposed to build some last grams of muscle tissue while avoiding fat reservoirs being build he needed a full workout with high quality sugars such as by fructose or honey or brown sugar using water to port to provide the energy based on kalories needed by excercise growing muscles in the protein based rest and sleep afterwards.
Or are you just mean?
He is exhausted. PAUUULLLY IS DIiIIIIENG!
#freaks
