Hans Selye was an early researcher in stress who believed that stress was not inherently negative, and could be beneficial from exhilarating work, or detrimental from failure or humiliation. Later research views stress as harmful, with negative biochemical and long-term effects rarely seen in positive situations. Stress is now defined as a feeling that events exceed one's resources to cope. Symptoms include upset stomach, headaches, backaches, insomnia, anxiety, depression and anger. Methods to manage stress include smiling, believing in oneself, going for walks, believing in God, respecting oneself, maintaining a positive attitude, spending time with friends and family, playing, watching movies, listening to music, getting adjusted to others, and spending time in prayer