Define resting heart rate and target heart rate and explain why it is important to know both when developing a exercise plan.

Ittle jake is strongly bonded to his mother. in fact, he has a difficult time letting her out of his sight. when his mother must leave him in daycare to go to work, the daycare provider calls because jake is inconsolable. since being placed in daycare, jake has also refused to sleep alone. what disorder do jake's symptoms suggest?