A woman experienced brain fog and memory loss after spending too much time online. Here's how she learned to unplug.

• Excessive social media use and screen time can impact sleep and brain function.
• A former digital media consultant said she had brain fog and memory loss from being online too much.
• She shared her tips for staying offline, from one-day detoxes to designated social media time.

If your New Year's resolution is to improve your health, using your phone less is a great place to start.

Studies show that excessive screen time, particularly in adolescents and young adults, can disrupt sleep and psychological health and even lead to dementia-like symptoms such as impaired concentration and memory.