My 4 month old lab goes to daycare x2 per week sometimes two days in a row. When he comes come my usual crazy, biting, wild tornado turns into a docile sleepy boy. Even the next day at home all he seems to want to do is sleep! Is this normal? He seems to absolutely LOVE going and I can tell it’s been helpful for his socialization and reinforcing basic commands. However I’m worried he is getting too much exercise? Should I be worried that all the running around and wrestling is making him too exhausted and potentially injuring his growing joints and bones? I appreciate any responses about your experiences with your doggos at daycare!