Exercise has long been linked to better immune health, but much less is known about what happens inside individual immune cells as fitness increases. A new study examined how cardiorespiratory fitness is linked to energy use and signaling in cytotoxic T cells, immune cells that help destroy infected or abnormal cells. The study included 43 healthy adults aged 20 to 40. Each participant completed a demanding cycling test to estimate their aerobic fitness, meaning how well the body delivers and uses oxygen during hard exercise. Using resting blood samples, researchers analyzed cytotoxic T cells ... exercise immune system
Read moreThe brain's cleanup system, often called the glymphatic system, uses the movement of cerebrospinal fluid to help carry waste away from brain tissue. That process is best known for its activity during sleep, but less is known about how brain fluid moves during wakefulness. A new study tested whether movement-related contractions of the abdominal muscles (the muscles in the belly wall) could create pressure changes that reach the brain and shift those fluids. The researchers studied mice while they moved on a spherical treadmill, using high-speed brain imaging to track tiny shifts in the top su... alzheimer's dementia exercise
Read moreEndurance athletes often look for ways to increase cardiorespiratory fitness beyond what exercise alone can provide, yet many proven methods are expensive and require major logistical demands. In a new study, researchers tested whether hot baths offer a simpler approach to stimulate cardiovascular adaptations. The study enrolled 10 well-trained endurance runners with an average maximal oxygen consumption (VO₂max, the highest rate of oxygen use during intense exercise) of about 64 milliliters per kilogram per minute. Each runner completed two five-week blocks: one with hot water immersion and ... exercise heat stress
Read moreDr. Rhonda Patrick discusses fragmented sleep, lipid biomarkers including ApoB and LP(a), coffee makers and bean quality, and choline supplementation. ... biomarkers heart disease coffee sauna supplements sleep rhonda Microplastics Ubiquinol magnesium L-Theanine
Watch nowDr. Rhonda Patrick explores melatonin's antioxidant properties, curcumin supplementation, antinutrients, and SARMs in her latest Q&A. ... rhonda exercise cancer sleep melatonin curcumin sulforaphane berberine moringa
Watch nowDr. Martin Gibala discusses HIIT's health benefits and describes common HIIT protocols. ... exercise aging heart disease diabetes mitochondria cortisol fat muscle bone lactate exercise snacks
Watch nowDr. Rhonda Patrick answers audience questions on various health, nutrition, and science topics in this Q&A session. ... rhonda vitamin d microbiome hormones omega-3 melatonin bone time-restricted eating cardiovascular supplements menopause Hair
Watch nowDr. Rhonda Patrick answers audience questions on various health, nutrition, and science topics in this Q&A session. ... rhonda vitamin d gut ketosis insulin resistance fasting sulforaphane intestinal permeability nrf2 urolithin a Hair menopause
Watch nowThe delta variant of SARS-CoV-2, the virus that causes COVID-19, is one of multiple variants to exhibit increased resistance to antibodies as well as higher transmissibility. It is unclear if vaccination or prior infection with the original Wuhan Hu-1 strain is effective against these emerging variants. But now, a new report suggests individuals who have recovered from infection with the original SARS-CoV-2 strain are protected from variants such as delta, especially following vaccination. A virus strain is considered the "parent" form of a virus. For example, SARS-CoV-1 and SARS-CoV-2 are str... vaccine covid-19
Read moreDr. Panda's research and that of his colleagues has suggested a pretty straightforward solution that seems to show a lot of merit, and that is: time-restricted feeding. By restricting mice to a 12-hour window in which they can eat starting at the first bite of food but otherwise allowing them to eat the same amount of calories, they have shown that they can attain some pretty amazing benefits, including… decreased fat mass increased lean muscle mass improved glucose tolerance improved lipid profile reduced inflammation higher mitochondrial volume protection from mild-age related fatty liver in...
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