Health

Mice subjected to shift work schedule start developing diabetes

Exposing mice to a light-dark cycle meant to mimic the schedule of human shift workers changes insulin sensitivity and glucose tolerance in the animals, according to a study published December 18, 2019 in the open-access ...

Neuroscience

Forgetfulness might depend on time of day

Can't remember something? Try waiting until later in the day. Researchers have identified a gene in mice that seems to influence memory recall at different times of day and tracked how it causes mice to be more forgetful ...

Psychology & Psychiatry

Daylight saving time does not misalign human cycles

Professor José María Martín-Olalla, from the University of Seville, has published a new report where the impact of seasonal clock-changing in daily life is analyzed from time use surveys in United States, Spain, Italy, ...

Medical research

Study debunks hormonal misconception of exercise

Women are not only underrepresented in exercise-related studies, but may be receiving incomplete information about physical activity because of a now-debunked belief that hormonal fluctuations linked to menstrual cycles can ...

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Cycling

Cycling, also called bicycling or biking, is the use of bicycles for transport, recreation, or for sport. Persons engaged in cycling are cyclists or bicyclists. Apart from ordinary two-wheeled bicycles, cycling also includes riding unicycles, tricycles, quadracycles, and other similar human-powered vehicles (HPVs).

Bicycles were introduced in the 19th century and now number about one billion worldwide. They are the principal means of transportation in many regions.

Cycling is a very efficient and effective mode of transportation optimal for short to moderate distances. Bicycles provide numerous benefits compared to motor vehicles, including exercise, an alternative to the use of fossil fuels, no air or noise pollution, much reduced traffic congestion, easier parking, greater maneuverability, and access to both roads and paths. The advantages are at less financial cost to the user as well as society (negligible damage to roads, and less pavement required). Criticisms and disadvantages of cycling include reduced protection in crashes, particularly with motor vehicles, longer travel time (except in densely populated areas), vulnerability to weather conditions, difficulty in transporting passengers, and the skill and fitness required.

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