Stress Leaves a Chemical Signature in the Saliva of Stressed College Students
A study of 637 undergraduates found over 90 percent reported moderate-to-high stress, with salivary biomarkers revealing sympathetic, hormonal, circadian, and ...
Tag: circadian rhythm
Chemotherapy Drug Speeds Ovarian Aging by Breaking the Body’s Cellular Clock, Study Finds
A new rat study shows the chemotherapy drug cyclophosphamide accelerates ovarian aging by depleting riboflavin kinase, destabilizing FAD-dependent cryptochrome clock ...
Bamboo Borer Beetles Keep a Strict Afternoon Schedule for Emergence and Flight
New field and laboratory research shows that the bamboo borer Dinoderus minutus emerges around 14:00 and takes flight around 16:00, ...
Night Owls Breathe Easy: Sleep Timing Does Not Determine Medical School Grades
A large cross-sectional study of Turkish preclinical medical students finds that chronotype shows no significant link to academic achievement, while ...
Body Clock Gene BMAL1 Plummets in Childhood Leukemia, Study Finds
A new study reports that the circadian clock gene BMAL1 and the cell cycle checkpoint regulator WEE1 are significantly downregulated ...
Sleeping Pill Fails to Lengthen Daytime Sleep for Night Shift Workers in Rigorous Trial
A randomized controlled trial found that the dual orexin receptor antagonist lemborexant did not improve daytime sleep duration in night ...
Ancient Alga Keeps Beating Its Daily Rhythm Even When the Sun Never Sets
The charophyte alga Chara braunii shows circadian branchlet movements that persist under dim continuous light but are suppressed at higher ...
Melatonin May Offer a Surprising Shield Against Skin Cancer, Review Suggests
A new review in the Archives of Dermatological Research proposes that melatonin, through antioxidant, DNA-repair, and circadian mechanisms, may serve ...
Health Evidence Favors Permanent Standard Time as Canada Moves to End Clock Changes
A new CMAJ analysis argues that if Canada ends the twice-yearly clock change, the health evidence favors adopting permanent standard ...
The Night That Never Darkens: How Artificial Light Is Rewriting Biology
A new editorial in BMC Environmental Science warns that exponentially increasing artificial light at night is disrupting circadian biology in ...
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Mothers who receive childcare support from maternal grandparents show more parental warmth, finds NTU Singapore study
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University of Seville Breaks 120-Year-Old Mystery, Revises a Key Einstein Concept
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Bee body mass, pathogens and local climate influence heat tolerance
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Researchers record first-ever images and data of a shark experiencing a boat strike
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Groundbreaking Clinical Trial Reveals Lubiprostone Enhances Kidney Function
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