In the cozy corners of our homes, where wagging tails and loyal companionship abound, secondhand smoke lingers as an unseen threat to our faithful canine friends. As some puff away on cigarettes and exhale plumes of toxic fumes, the innocent noses of our older dogs are unknowingly subjected to a barrage of harmful chemicals. The alarming reality is that while we may be aware of the dangers posed by secondhand smoke to human health, the risks it poses for our aging furry companions often go un...