Several states in the US, including California, Washington, Florida, and North Carolina, are now considering doing away with the practice by making daylight savings time (DST) permanent. But, researchers reporting in the journal Current Biology on April 22 say, permanent DST would make it harder to wake up in the winter. It would also undermine efforts in many states to give teens more time to sleep in by pushing school start times back.
A new study led by researchers from the University of California, Irvine finds exercising in the morning, rather than at night, may yield better results.
Two papers appearing April 18, 2019 in the journal Cell Metabolism confirm that the circadian clock is an important factor in how the body responds to physical exertion. Based on this work alone, it's too early to say when the best time is for you to go for a jog. But at least in the lab, exercise in the evening seems to be more productive, although human lifestyles are much more complicated.
During his yearlong stay on the International Space Station (ISS), astronaut Scott Kelly experienced a shift in the ratio of two major categories of bacteria in his gut microbiome. The diversity of bacteria in his microbiome, however, did not change during spaceflight, which the Northwestern University-led research team found encouraging.
A new study by University of Guelph researchers explains why heart failure patients often have trouble with thinking and depression, pointing to ways to prevent and treat both heart and brain maladies through the emerging field of circadian medicine.
In a study funded by the National Institutes of Health, West Virginia University neuroscientists linked white light at night--the kind that typically illuminates hospital rooms--to inflammation, brain-cell death and higher mortality risk in cardiac patients.
Northwestern University researchers induced jet lag in a fruit fly model of Huntington disease and found that jet lag protected the flies' neurons.
Shift work and non-standard work schedules provide clear economic benefits in a 24/7 society, but also come with issues related to insufficient sleep, misalignment of the biological clock, and other factors that influence the safety, health and well-being of workers. Experts from around the world have published a special issue of the international scientific journal Industrial Health focused on shift work and working time arrangements.
What makes a biological clock tick? According to a new study from U of T Mississauga, the surprising answer lies with a gene typically associated with stem and cancer cells.
Exposure to the widely used chemical bisphenol A (BPA) during pregnancy, even at levels lower than the regulated 'safe' human exposure level, can lead to changes in circadian rhythms, according to a mice study to be presented Monday at ENDO 2019, the Endocrine Society's annual meeting in New Orleans, La. The researchers report these changes may be a contributing factor in hyperactivity seen in BPA-exposed mice.