Synonyms for «enough stimulation»

Synonyms for individual words can be found below.

Even though many owners understand this, they may also worry that their cats aren't getting enough stimulation indoors. (kristenlevine.com)
Am I providing enough stimulation for proper cognitive development? (attachmentparenting.org)
Too many cats are bored, depressed and inactive because there isn't enough stimulation in the environment. (catbehaviorassociates.com)
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