delinquent noun [C]. âº a âperson, usually âyoung, who âbehaves in a way that is âillegal or not âacceptable to most âpeople: âjuvenile delinquents.
Sahelanthropus may have walked on two legs. The oldest evidence for walking on two legs comes from one of the earliest humans known, Sahelanthropus. Walking upright may have helped this species survive in the diverse habitats near where it livedâincluding forests and grasslands.
1 By holding on, and aligning your body in an unnatural way, you increase the risk for longer-term injuries and pain â especially in the shoulders, knees, lower back and hips.  Worsens balance. Running or walking on a treadmill helps improve your bodyâs balance â but all of that is thrown out the window when you hold on. When you hold on, you teach your body to rely on an external machine for balance.