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不能轻易GAY，也不能轻易SAD.

SAD

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Look up SAD or sad in Wiktionary, the free dictionary.

Contents 1 Disorders and medical conditions 2 Language 3 Organizations 4 Places 5 Technology and science 6 Other 7 References

The word sad refers to an emotional condition.

SAD or sad may refer to:

Disorders and medical conditions

• Schizoaffective disorder, a psychiatric diagnosis with symptoms of a mood disorder and schizophrenia
• Seasonal affective disorder, a mood disorder with depressive symptoms in the winter
• Separation anxiety disorder, a psychological condition related to anxiety of separation from home or from people
• Sexual arousal disorder, the inability to attain or maintain typical responses to sexual arousal
• Social anxiety disorder, a diagnosis referring to excessive anxiety in social situations
• Syncope, Angina, and Dyspnea, classic symptoms of severe aortic stenosis