Related Episodes for The Brain and Social Impacts of Screen Time and Early Device Exposure

“The most compelling human signal appears when the brain is under acute strain. In a randomized crossover study, a single dose of 0.35 grams per kilogram during 21 hours of sleep deprivation changed cerebral energy metabolites and preserved selected measures of cognitive performance.”

“A recent meta-analysis also found small benefits in selected cognitive domains, including memory and processing speed, with responses that may depend on age, diet, baseline stores, stress, dose, and the cognitive test used.”

“A separate six-week randomized study in 30 healthy young adults found that neither 10 nor 20 grams per day improved the tested cognitive outcomes compared with placebo. The result is an important counterweight to the acute sleep-deprivation experiment.”

“Acute stress may create a different context. In a double-blind crossover study of 15 adults undergoing 21 hours of sleep deprivation, a single 0.35-gram-per-kilogram dose changed brain high-energy phosphate measures and improved selected cognitive outcomes.”

Dan Pardi: Ph.D. candidate studying sleep neurobiology at Stanford and University of Leiden, co-founder of Dan’s Plan online wellness company.

“Tools, companies, and resources mentioned OpenAI - AI research and deployment company behind widely used GPT systems and developer tools; its science case study describes GPT-5 helping Unutmaz's lab resolve a long-standing immunology question.”

“Dr. Rhonda Patrick discusses the differences between different forms of DHA in terms of bioavailability and transport into different cells. She talks about why a specific type of DHA (DHA in phosphatidylcholine) is more readily transported into the brain because it forms DHA-lysophsophatidylcholine.”

“Her practical message is to reduce the frequency and size of large glucose exposures. Foods with intact fiber, protein, and minimally processed carbohydrates digest more slowly than refined added sugar, while regular exercise gives skeletal muscle a large destination for circulating glucose.”

“In animal studies, high doses of magnesium in the form of magnesium L-threonate have been shown to cross the blood-brain barrier readily and coincide with improvements in cognitive function.”

In this clip, Dr. Griffiths talks about the effect of dose on psilocybin mystical experiences and ‘bad trips’.