Wearable fitness trackers provide sleep data that can give you insights about the duration and quality of your sleep. A doctor explains which metrics matter the most, and how to use the data to ...

Based on testing done by our sleep experts and headphone expert, these are the best headphones and earbuds for sleep.

Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. The Apple Watch has a ...

Social memory—the ability to recognize familiar individuals and distinguish them from strangers—is fundamental to social cognition.

Restorative sleep happens during deep sleep and rapid eye movement (REM) sleep. Deep sleep repairs tissue and strengthens immunity, while REM supports learning and memory. Nonrestorative sleep means ...

Most adults still need about 7 to 9 hours of sleep each night as they age, and needing less sleep later in life is a myth. Teenagers ages 13 to 17 need 8 to 10 hours per 24 hours. Sleep may feel ...

Jessica is a writer, editor and media professional who has spent her career working with some of the most influential names in media. Prior to joining Forbes Health, Jessica was the manager of ...

Caroline Igo (she/her/hers) was a wellness editor at CNET and holds Sleep Science Coach and Stress Management certificates from the Spencer Institute. She received her bachelor's degree in creative ...

Maggie O’Neill is a health writer and reporter based in New York who specializes in covering medical research and emerging wellness trends, with a focus on cancer and addiction. Prior to her time at ...

Hypnagogic hallucinations are visions or sounds that happen as you fall asleep. The idea of having hallucinations can be upsetting. Hallucinations are usually associated with serious mental conditions ...

Getting a good night's rest is critical to your wellbeing, but it isn't always easy to go to bed or sleep through the night. Life Kit's here to help you and your loved ones achieve optimal sleep.