天氣影響心情

季節性抑鬱
Seasonal affective disorder is a major (serious) form of depression that occurs at the same time each year. Researchers have identified two types of SAD. The most common type, known as "winter depression," usually begins in the late fall to early winter months and ends in spring.
Surveys estimate that 4 to 6 percent of the general population experience SAD. Women with SAD outnumber men four to one. （女士要小心）The disorder usually begins in person's early twenties and the risk for developing SAD decreases with age．
點醫啊？曬多ｄ啦?
Research now shows that light therapy, or exposure to light, is an effective treatment for winter depression. Light therapy is administered by a 10,000-lux light box, which contains white fluorescent light tubes covered with a plastic screen that blocks ultraviolet rays.
The patient sits in front of the box with his or her eyes open, but should not look directly into the light. The therapy begins with daily sessions of 10 to 15 minutes, which are gradually increased to 30 to 45 minute sessions. Ninety minutes of exposure per day is often prescribed. The therapy typically continues until spring.
長年下雨陰天的地方（好像美國西岸某城市），抑鬱症患者也可能較多．．．
仍在尋找證據中，所以不便透露地名