Medical research

A key switch in biological clocks

Just as we abide by an external time schedule to eat, sleep, and go to work, our body is similarly dictated by internal clocks. Known as circadian rhythms, these daily cycles keep us on a regular 24-hour day and are involved ...

Medical research

Timing of stress-hormone pulses controls weight gain, study finds

New research provides the first molecular understanding of why people gain weight due to chronic stress, disrupted circadian rhythms and treatment with glucocorticoid drugs: It's all in the timing of the dips and rises of ...

Genetics

New insights into gene underlying circadian rhythms

A genetic modification in a "clock gene" that influences circadian rhythm produced significant changes in the length and magnitude of cycles, providing insight into the complex system and giving scientists a new tool to further ...

Alzheimer's disease & dementia

Body clock disruptions occur years before memory loss in Alzheimer's

People with Alzheimer's disease are known to have disturbances in their internal body clocks that affect the sleep/wake cycle and may increase risk of developing the disorder. Now, new research at Washington University School ...

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