Cats have a positive impact on our lives in various scientific ways. Studies have shown that owning a cat can reduce stress, anxiety, and depression levels in humans. The act of petting a cat can release oxytocin, known as the "love hormone," which promotes feelings of happiness and relaxation. Cats also provide companionship and emotional support, helping to decrease feelings of loneliness and isolation.

Furthermore, the purring sound cats make has been shown to have a calming effect on humans, reducing blood pressure and heart rate. Owning a cat can also improve physical health, as the presence of a cat in the home has been linked to a decreased risk of cardiovascular disease and lower cholesterol levels. Overall, the scientific evidence suggests that cats truly do make life better for their human companions in a multitude of ways.