CIRCADIAN RHYTHM

This study looked at whether adding special breathing muscle training to running programs based on a child's natural sleep-wake rhythm could improve exercise ability, agility, and breathing in 75 boys aged 10-13 who had been playing football for at least two years. The children w…

This study looked at whether exercising in the morning or evening helps control blood sugar better in pregnant women with gestational diabetes or glucose intolerance. 39 participants walked or stepped for 30 minutes either after breakfast or after dinner. Researchers measured blo…

This study looked at 200 heart transplant patients to see if the time of day the donor heart was removed affects how well they do after surgery. Researchers compared hearts taken during the body's rest phase (midnight to noon) versus the active phase (noon to midnight). They foll…

This study looked at how the sleep hormone melatonin and a specific gene variation (MTNR1B) work together to control blood sugar. Researchers tested 23 healthy adults in a controlled lab setting. The goal was to understand the connection, not to provide a treatment.

This study looked at how lack of sleep and evening light exposure stop morning bright light from helping teens reset their internal body clocks. Researchers tested 88 adolescents aged 14-17 to find the point where morning light stops working. The goal is to understand these limit…

This small study tested whether eating all meals within a set early window (time-restricted feeding) improves metabolic health and body clock function. Sixteen healthy adults aged 18-35 followed the diet for 4 weeks. Researchers measured changes in appetite hormones, blood sugar,…