Sorry, cat-people, but DOGS win! Dr. Lori Kogan, clinical science professor at Colorado State, says dogs need to be walked, making us more physically active. Walking our dogs also means meeting other dog owners, or dog-lovers that just want to say “hi,” which triggers production of feel-good hormones. Plus: Growing up with a dog lowers a person’s risk of allergies and asthma. But before cat lovers get their claws out, ALL pets improve our health. Because they provide stress relief and a mood-boosting dose of oxytocin every time we snuggle, play with, or even just look at them.