Study reveals the function of specific immune cells, well documented as playing a significant role in gut health, is directly controlled by our circadian clock.
Glioblastoma stem cells' circadian clocks ramp up the cells' metabolism, making them stronger, more resistant to treatment, and able to divide and multiply more rapidly. By targeting the stem cells with a small molecule drug, researchers found mice models lived longer and their tumors shrank.
Advanced sleep phase may affect as many as one in 300 people, and may be the result of a genetic trait.
Breast milk may help train the circadian clock in young babies. The hormonal composition of breast milk changes throughout the day, with cortisol levels being higher in the morning and melatonin levels being higher at night.
Simple lifestyle alterations can help reset the circadian clock, leading to improved mental and physical health for those who have trouble getting to sleep at night.
Skin and liver cells appear to have their own circadian clock. Both the liver and skin respond to changes in light and maintain critical function, independent of the brain's circadian rhythm.
In pregnant women and mice, the daily schedule shifts a few hours forward during the first trimester. Activity levels also dip during this time. The advance of the daily schedule stabilizes, before gradually returning to normal during later stages of pregnancy.
Researchers report fasting affects the circadian rhythm of the liver and skeletal muscles, allowing them to rewire their metabolism. The study suggests fasting can help improve health and protect against aging related diseases.
Astrocytes may lead the tempo of the body's internal clock and control patterns of daily behavior, a new study reports.