10. “I Know Exactly When You’re Sad — Even When You Smile”
You walk in upset, but you are hiding it. Your dog comes over anyway, puts their head on your knee, and looks up with those soft eyes. How do they know? They smell it.
Dogs detect changes in human stress hormones — cortisol, adrenaline — through scent. They literally smell your sadness before you say a word. Combined with reading your face and body, they often know how you feel before you fully realize it. This is why dogs comfort us so well. Take a breath before you read the next one.