Mentally exercise tires a dog physically more than physical exercise does!
When we are mentally challenged it drains us, as if we had done exertive exercise and need to rest.
Dog’s are no different, dogs need the physical exercise to keep muscle toned and excess
energy addressed. As you have probably noticed it takes a lot of exercise to tire out your dog.
So along with physical exercise, exercise your dog’s brain.
Teach new tricks, obedience train, while on your walks all dogs will benefit from this,
no matter how old.