The bottom line is that these aren't just adolescent phases for many kids. (empoweringparents.com)
Dogs CAN be trained successfully at any age, but it's much easier to set these rules in the beginning, before your dog reaches that stubborn adolescent phase. (spacecitydogtraining.com)
Psychoanalysis recognizes that promiscuous sexual behavior springs from a disturbed personality, though exceptions are made in the case of the exploratory adolescent phase of development, which marks the transition between infantile and mature love. (religion-online.org)