Related Episodes for Why Vitamin D Levels Stay Low

“In 15 people with severe traumatic brain injury, sodium lactate infusion increased brain lactate, pyruvate, and glucose without raising intracranial pressure, and a randomized study in 60 patients with mild traumatic brain injury reported better cognitive recovery than hypertonic saline.”

“In an early randomized workplace study, healthy employees who completed an eight-week mindfulness program showed a greater rise in antibodies after influenza vaccination than a waitlist group.”

“A meta-analysis of 19 randomized trials involving 1,683 participants found modest average improvements, including about seven minutes less time to fall asleep and eight minutes more total sleep. Product quality can make dose selection difficult.”

“A small randomized trial in trained athletes found that 20 milligrams per day for two weeks increased total antioxidant capacity and glutathione peroxidase and reduced post-training DNA damage versus placebo; it did not test performance or long-term adaptation.”

“Whereas fasting turns off multiple pathways associated with aging, such as mTOR and IGF-1, eating for optimal fitness activates these important processes. The IGF-1 pathway, in particular, plays key roles in growth and is strongly associated with cancer.”

“In this FoundMyFitness Premium Q&A preview, Dr. Rhonda Patrick reviews common contributors to fragmented sleep, including insomnia, sleep apnea, nocturia, psychological stress, irregular schedules, caffeine, alcohol, light, noise, temperature, and late eating.”

“Family-controlled research provides another view. A Swedish cohort of 2.48 million children found small associations in conventional models, but the estimates moved to the null when siblings with different prenatal exposure were compared.”

“A separate study found brominated flame retardants in some black plastic kitchen utensils made with recycled electronic waste and measured transfer into hot cooking oil. Thermal paper receipts can also transfer bisphenols through the skin.”

“Research in trained cyclists found that daily heart rate variability tracked training load and perceived exertion during an overload period, then returned toward baseline during recovery, supporting its use as a sensitive signal when interpreted against an individual's normal range.”

“In later randomized trials, urolithin A improved some laboratory measures of muscle endurance or hamstring strength, but it did not significantly improve key primary outcomes such as six-minute walk distance, muscle ATP production, or peak power.”