It also altered people's metabolism, as blood tests showed that the blue-light subjects had higher insulin and glucose levels. 蓝光的照射改变了人们的新陈代谢。血液测试显示,接受蓝光受试者的胰岛素和葡萄糖水平较高。 One possible explanation is that bright blue light at night confuses our body cloc...
How does a lack of insulin prevent the cell from using glucose? Why are hummingbirds so much more efficient than humans at metabolizing sugar? A family member has been cautioned about eating foods high in sugar. Explain how a test could be run for the present ...
Why do some animals' eyes "glow" at night while human eyes do not? Why is owl able to see in night but not in day? (a) Why is there a blind spot in the eye? (b) Why does mechanical stimulation of the retina affect the blind spot? What is the principle cause of night blindnes...
Night sweats are uncomfortable—but sometimes they're also a symptom of a larger health problem. Experts explain all the possible causes and what you can do.
Sugar, in the most simple terms, is a carbohydrate. And it comes in many forms, including glucose, fructose, and galactose. The table sugar you have in your cupboard at home is glucose and fructose. When any of these types of sugars are broken down in the body, they are converted into...
To compare, consuming a pure glucose liquid, which causes a sharp spike (and subsequent drop) in blood sugar, caused the largest reduction in daytime alertness. Your mood: The happier you feel, the more alert you’ll feel during the day, researchers found. One reason: Serotonin, the “...
He backs up his theory with data that shows the brain experiences a dramatic drop-off in performance after it's been awake for more than 24 hours. The brain runs on glucose, and test results show that even when there's plenty of glucose available, after the brain has been awake for a...
(a significant drop in sugar) to occur in the morning, and the body begins increased glucose production to protect itself from this unfavorable phenomenon. Some experts also suggest that it may result from dietary errors (e.g., no dinner, too long a night break in eating), especially in...
9. Sleep improves glucose metabolism Lack of sleep reduces insulin sensitivity and blood glucose regulation. When we’re sleep-deprived, our bodies release more of a hormone called ghrelin and less of another hormone called leptin. Ghrelin makes us hungry, and leptin helps control that hunger, so...
This is because humans are diurnal (active during the day, and asleep at night) – and our evolution has led to us having cells that are optimized towards 12 hours of day time activity. Whilst eating within the 12 hour (day time) clock, we metabolize glucose, amino acids, fatty acids ...