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In pregnant mice with high thyroid hormone, certain muscle fibers use up their stored sugar and build more energy-producing mitochondria, but the proteins controlling muscle contraction remain...
Even when pregnant mice have high levels of thyroid hormone—which normally makes fat tissue generate heat—their fat tissue does not increase heat production, suggesting pregnancy blocks this response.
When pregnant mice are given thyroid hormone, their body temperature rises at first, but over time their bodies naturally reduce this rise to maintain a normal temperature before birth, even though...
When horses eat sinigrin with low iodine, their thyroid glands produce less hormone, but their brains don’t respond by sending more signal to the thyroid—unlike what typically happens in iodine...
Even when horses have normal thyroid hormone levels at rest, eating sinigrin with low iodine makes their thyroid glands less able to ramp up hormone production when the body signals for more,...
When horses eat a diet low in iodine and high in sinigrin for 12 weeks, their blood iodine levels drop significantly, indicating the compound may block iodine uptake or increase its loss.
When adult mares eat a diet low in iodine and high in sinigrin for 12 weeks, their thyroid glands produce less hormone in response to a hormone signal that normally triggers a strong reaction.
When adult mares are fed a diet low in iodine and high in sinigrin—a compound found in mustard plants—for 12 weeks, their blood iodine levels drop and their thyroid glands respond less strongly to...
When elite runners increased either their running volume or intensity, their levels of key hormones like testosterone, insulin, and thyroid hormones remained unchanged, indicating that overtraining...
When elite runners dramatically increased their weekly mileage, their body’s stress hormone levels (cortisol and aldosterone) dropped both at rest and during exercise, but when they increased workout...
When elite runners increased the speed and intensity of their workouts without drastically increasing total distance, their performance improved and their stress hormones stayed stable, indicating...
When elite runners drastically increased their weekly mileage, their overnight levels of stress-related hormones dropped significantly, even though their bodies still released high levels of these...
When elite distance runners rapidly increased their weekly running distance from about 86 km to 177 km over three weeks, their endurance and peak performance stopped improving and began to decline,...
When cauliflower is dried, fortified with iodine, and kept cold, it holds onto iodine well for months—making it a viable ingredient for adding iodine to processed foods like bread or pasta.
Changes in natural compounds in cauliflower that may interfere with iodine use do not consistently affect iodine levels—sometimes they correlate, sometimes they don’t, depending on how the food is...
Storing iodine-fortified cauliflower at room temperature or warmer causes much more iodine to break down than storing it in the fridge; keeping it cold is essential to preserve iodine over time.
When iodine is added to cauliflower as potassium iodate instead of potassium iodide, it stays stable for much longer during storage, even under warm conditions, making it a more reliable choice for...
When cauliflower is steamed or boiled without a lid before being fortified with iodine and then dried, it holds onto more iodine during storage than when boiled with a lid, making it a more effective...
Blocking thyroid hormone signaling in the zona incerta does not change the body temperature of male mice, even when they are kept in a warm environment where heat production is normally minimized,...
When thyroid hormone signaling is blocked only in dopamine-producing neurons within the zona incerta, male mice show no changes in metabolism, stress hormones, or behavior, meaning the earlier...
Male mice with blocked thyroid hormone signaling in the zona incerta show less reduction in movement when placed in a new environment over time, indicating a subtle impairment in learning to ignore...
When thyroid hormone signaling is blocked in a specific brain region called the zona incerta, male mice show higher levels of stress hormones in their blood, suggesting this area may help regulate...
Blocking thyroid hormone signaling in a specific brain region called the zona incerta causes male mice to burn more energy at rest while keeping their body temperature the same, indicating this brain...
People living near active volcanoes do not show higher levels of toxic metals in their thyroid glands than those living in non-volcanic areas, even though the environment contains more pollutants.