Can a toddler get too much exercise?

Toddlers naturally display a high level of energy and will amuse themselves with physical activity, and they will generally tire themselves out naturally as well. Adults shouldn't force toddlers to perform physical activity beyond what they will naturally do to keep themselves amused, though it may be necessary to encourage naturally low-energy toddlers to engage in more active play.

While some adults may feel overwhelmed by the amount of energy young children can display, this kind of seemingly superhuman energy is completely natural around the age of 19 months old. Toddlers are learning a lot at this stage, including how to move their bodies, so letting them play freely in a safe environment is fine.