“It is important to reiterate that this is a cross-sectional, correlational study, so causation cannot be determined. For example, this study does not show that smoking and substance abuse causes more distress than substance abuse alone,” explains Nicole Siegfried,...

When Madeline Freeman was in high school, 12 of her classmates died by suicide. Though the experience in Freeman's community was extreme, it wasn't isolated. Lightfully's Nicole Siegfried discusses the link between social media use and depression. In "No Social Media...

A discussion of the connection between depression and insomnia from Healthline. Lightfully's Nicole Siegfried, PhD, CEDS, is interviewed about this connection and the use of supplements to treat insomnia. Depression and insomnia often go hand in hand. In fact,...