Pets can reduce stress levels in various ways. The presence of a pet can help lower cortisol levels, reduce blood pressure, and decrease feelings of loneliness and anxiety. Interacting with pets, such as petting or playing with them, can release oxytocin, dopamine, and serotonin - neurotransmitters that promote relaxation and happiness. Additionally, caring for a pet can provide a sense of purpose and routine, which can also contribute to reduced stress levels. Overall, the companionship and unconditional love that pets offer can have a calming and soothing effect on their owners, leading to lower stress levels.