Science news articles about 'melatonin levels'

Low melatonin levels are associated with an increased risk of breast cancer in postmenopausal women, according to a prospective case-control study.

... unit of blue light plus half a unit of green light to both eyes and then measured each individual's melatonin levels, a natural indicator of the circadian clock. "The first two ...

... cycle and has been shown to be low in some night workers. Researchers have found that low melatonin levels in premenopausal women are associated with an increased risk of breast cancer. To find out ...

... difference between day and night." Exacerbating the effect of low melatonin levels, aging people tend to sleep in a less organized fashion than younger people, Prof. Zisapel explains ...

... dark by the pineal gland and is a key regulator of circadian and seasonal rhythms. A low melatonin level was reported in individuals with Autism Spectrum Disorders, but the underlying cause of this ...

... , The Lancet. "Our studies show that tasimelteon is able to effectively shift the rhythm of melatonin levels in the body, which are a well-established marker of the human biological clock," Dr ...

... during a 24-hour natural cycle. The researchers suggest that when there is a genetic abnormality that affects melatonin levels and sleep patterns, this may also disturb the levels of insulin in the ...

... is associated with both elevated fasting glucose levels as well an elevated risk for type 2 ... of insulin via the neural hormone melatonin. The melatonin level in the body is high at night and declines ...