Neuroscientist Says Your Brain Needs One Thing Before You Can Sleep

Key Points:

• Cognitive neuroscientist Yousuf Aslam explains that sleep quality is influenced not only by biological mechanisms like circadian rhythm and sleep-wake homeostasis but also significantly by emotional factors such as stress and anxiety.
• Sleep disruption often occurs because the brain feels "unsafe," either due to unresolved past experiences or anxiety about future events, triggering a sympathetic nervous response that hinders the transition to restful sleep.
• For sleep to happen, the brain must shift from stress-related beta waves to relaxing alpha waves, but many people struggle with this, often resorting to late-night phone use that delays sleep onset.
• Aslam recommends a nightly gratitude-writing exercise focused on past, present, and future appreciation to train the brain to feel secure and promote better sleep quality, advising that this be done by hand and read again shortly after waking.
• Improving sleep quality through such practices can enhance overall mental health, including better focus, clarity, and memory function.