Each of the following is a method for lowering stress and staying healthy except ________.

A) relaxation training
B) exercising regularly
C) increasing your "alone time"
D) developing a social support system

Increasing "alone time" may not necessarily be a method for lowering stress and staying healthy. It depends on the individual and their preferences. Some people may find that spending more time alone can increase their stress levels, while others may find it helpful. However, relaxation training, exercising regularly, and developing a social support system are all well-established methods for improving mental and physical health and reducing stress.