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body clock

Dear Doctors: I recently sent my mom an email at midnight, and ever since she’s been after me to stop using my smartphone after bedtime. She insists that the light from the screen interferes with sleep patterns. Is that really true? Dr. Elizabeth Ko and [...]
By Ask the Doctors • May 28, 2018
If winter days get you down, you’re not alone. You may have seasonal affective disorder, a type of depression triggered by the change of seasons. People with this disorder tend to feel depressed in the fall and winter, when there is less sunlight and the days are shorter. [...]
By uclahealth • November 21, 2016