Skeleton muscles relay on contractions to move the bone they are attached to so it can contract and relax
1. Infected needles
2. Insect bite
3. Organ transplant
4. Blood transfusion
We know fatigue can cause drowsiness and so can the other so my best guess is drowsiness
Bruce, demetria and william - the only ones that make sense
Genetic factors and rate of maturity I believe
