The influence of temperature changes on risk factors like hypertension is often disregarded despite extensive literature on the phenomenon. Numerous surveys and studies have documented the correlation ...

A study expands the list of known genes with circadian variation and provides the first comprehensive list of genes with seasonal variation in each tissue. Tissues in the thoracic cavity, such as the ...

Seasonal variation in one of the hormones used to monitor thyroid function could in turn lead to false diagnoses of subclinical hypothyroidism and unnecessary prescriptions of levothyroxine, says Yale ...

The alarm rings at 6 a.m. and you struggle to wake despite getting eight hours of sleep, a scenario your body knows all too well as winter deepens. This seasonal lethargy isn’t simply psychological ...

The daily rotation of Earth and its yearly voyage around the sun marks the natural rhythm of life on the planet. Human health indicators such as body temperature, blood pressure and sleep, as well as ...