morning 2 1

Tag: "morning" at biology news

Dinosaur hearing, listening to muscle noise, quieter cubicles

...cial session at the Conference Center on Wednesday morning (June 6), John Longhurst, senior organist for the Mormon Tabernacle Choir ( longhurstjt@ldschurch.org ) will discuss and demonstrate the Conference Center's pipe organ, which contains 7,708 pipes in its 130 ranks. In Longhurst's presentation, attend...

Sleep quantity affects morning testosterone levels in older men

... healthy men between the ages of 64 and 74. Three morning blood samples were pooled for the measurement of t... The main outcome levels were total sleep time and morning testosterone levels. Analyses revealed that the amount of nighttime sleep measured by polysomnograp...

Individual differences in a clock gene predict decline of performance during sleep deprivation

...rms of the gene appear to influence characteristic morning and evening activity levels—for example, "owl" ver...were most pronounced during the early hours of the morning (between 4 and 8 a.m.), during which individuals with the longer variant of the gene performed very ...

'Night owls' report more insomnia-related symptoms

...s and consequences of insomnia. Compared to the morning and intermediate types, people with insomnia who prefer evening activities (i.e., “night owls? reported the most sleep/wake irregularities and waking distress, even after adjusting for severity of sleep disturbance. “Our findings indicate that fur...

Gene that makes people 'early to bed and early to rise' demystified

...on in which people are "morning larks," with early morning awakening and early sleep times. People with the condition generally show changes in core body temperatures and other characteristics governed by the circadian clock that are shifted up by three to four hours. The syndrome is passed on in a dominant ...

Birds found to plan for the future

...pating that they would not be fed in the following morning in that compartment. Another experiment showed that the birds were able to plan ahead to provide themselves with a more varied diet. The jays were consistently given a breakfast of peanuts in one compartment and dog kibble in the other. When the b...

In presence of fragrant cleaning products, air purifiers that emit ozone can dirty the air

... in the air. This research appeared online this morning in Environmental Science and Technology. "The public needs to be aware that every air purification approach has its limitation, and ionization air purifiers are no exception," said Sergey Nizkorodov, assistant professor of chemistry at UCI and co-...

Monoclonal antibody reduces exacerbations in asthmatics

...erbations in patients with asthma, as monitored by morning and evening use of an electronic spirometer incorporating a clinical diary," said Dr. Hansel. "Although infliximab therapy did not show significant efficacy for the primary endpoint of monitoring peak expiratory flow (PEF), it did produce a significa...

Negative effects of caffeine are stronger on daytime sleep than on nocturnal sleep

...ed for one night and recovery sleep started in the morning (DayRec). All subjects received a capsule of 100 mg of caffeine (or placebo) 3 hours before bedtime, and the remaining dose 1 hour before bedtime. Compared to placebo, caffeine lengthened sleep latency, increased stage 1, and reduced stage 2 and slow...

Underweight women at greater risk of miscarriage

...found confirmation for the widely-held belief that morning sickness is an indicator that the pregnancy is progressing well. Women who suffered from nausea and sickness in the first twelve weeks of pregnancy were almost 70% less likely to miscarry, and the more severe the sickness, the better the odds of the ...

'Failed' experiment yields a biocontrol agent that doesn't trigger antibiotic resistance

...ural and Life Sciences. His inspiration came one morning in 1999 when he was puzzling over a failed experiment. A researcher in his lab had been trying to insert two different mutations into an ordinary bacterial plasmid - a routine task for the experienced scientist - but every attempt failed to produce ...

Learning during sleep?

If I can't remember this morning where I put my car keys last night, it's due to my memory failing me again. Scientists at the Max Planck Institute for Medical Research in Heidelberg have been investigating how memories might be consolidated. Their new study offers the hitherto stro...

Psst! Coffee drinkers: Fruit flies have something to tell you about caffeine

...rosophila flitting past your bananas to slurp your morning java anytime soon," says Craig Montell, Ph.D., a professor of biological chemistry in the Institute of Basic Biomedical Sciences at Hopkins. "The bottom line is that our mutant flies willingly drink caffeine-laced liquids and foods because they can't...

Singing for survival

... were any differences between the typical duetting morning song and that delivered in response to a predator. They noted subtle differences between the two songs, particularly in the early stages (first ten notes) of the song, which would be important in the case of predator encounters. Songs usually begun...

Melatonin improves mood in winter depression

...roups, taking placebo capsules or melatonin in the morning or afternoon for three weeks. After four years of study, they concluded that, similar to persistent jet lag, circadian misalignment is a major part of SAD. Most patients, typically phase-delayed types or "night owls," have misalignment that respond...

Researchers find that bumblebees' flower choice matters

...he kinds of potted plants that are dropped in each morning and the density of each species in the plot. On any given day, Flanagan will trim the plants so that each has the same number of flowers on it. Then she tracks one bee at a time, calling out its exact foraging sequence by number to her undergraduat...

Adults who go to bed lonely get stress hormone boost next morning

...elmed, then along comes a boost of hormones in the morning to give you the energy you need to meet the demand...ellow at the Institute for Policy Research. The morning cortisol boost could help adults who went to bed with troubled or overwhelming feelings go out in th...

Internal body clock dictates timing of different types of stroke

...o peaks during the day, one between 6 and 8 in the morning and the other between 6 and 8 in the evening, with... that cerebral infarction had a higher peak in the morning and a lower peak in the afternoon than the other two. Intracerebral haemorrhage and subarachnoid ...

Learning and memory stimulated by gut hormone

...t breakfast in order to make the most out of their morning hours at school," said Horvath. "The current obesity epidemic among American school children, which to some degree has been attributed to bad eating habits in the school environment, has been paralleled by a decline of learning performance. It is how...

Alleged 40,000-year-old human footprints in Mexico much, much older than thought

...ater on the footprint hypothesis came to Renne one morning in the shower. Many rocks retain evidence of their orientation at the moment they cool in the form of iron oxide grains magnetized in a direction parallel to the Earth's magnetic field at the time of cooling. Because the Earth's field has repeatedly ...

1 2