It depends on the case; there is no single guideline.
Review: boosting slow-wave sleep (the deep stage that reorganizes brain circuits) could improve cognition. Approaches range from exercise (easy, not very specific) to brain stimulation (specific, not very practical). Promising concept.
View the study (study) →Lifestyle · Highest evidence: Low · 1 finding
Information, not medical advice. Prescription drugs require a doctor.
Information, not medical advice. Scientific evidence reflects the quality of the studies.