Effects of Laughter on Patients and Caregiver Laughter can be a powerful therapy for most patients and the caregivers. There are many benefits from the effects of humor and laughter on the body, mind, and spirit; the patient during recovery from illness; and the health professional during delivery of care. Most experienced caregivers have discovered that attention to only the physical body during treatment will render a partial or temporary recovery. The patient's emotional responses, belief system, and support network may effect compliance of treatment and ability to cope with fear, pain, and loss. Medical studies indicate that laughter boosts levels of en