Insights into dry eyes gained from stem-cell-derived tear glands
An estimated 5–15% of people have problems with dry eyes, with symptoms including eye redness, stinging, or burning sensation, and eye fatigue.
Dec 18, 2025
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Heterocyclic Compounds: News and Research on Melatonin
MeSH tree: D03.633.100.473.914.481
Why do we wake up shortly before our alarm goes off? It's not by chance
You've probably experienced it—your alarm is set for 6:30 a.m., yet somehow your eyes snap open a few minutes before it goes off. There's no sound, no external cue, just the body somehow knowing it's time.
Dec 13, 2025
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Tablet use before bed found to have little effect on toddlers' sleep
It is often said that the blue light emitted by tablets and phones makes it harder to fall asleep because it impacts the production of the sleep hormone melatonin.
Nov 20, 2025
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Should you worry about melatonin and heart failure? The evidence isn't clear
A study presented at the American Heart Association's scientific meetings has raised concerns about melatonin, one of Britain's most commonly prescribed sleep aids. The findings suggest that long-term users face a higher ...
Nov 11, 2025
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A study questions melatonin use and heart health but don't lose sleep over it
Don't lose sleep over headlines linking melatonin to heart failure. That's the message after some scary-sounding reports about a preliminary study involving the sleep-related supplement. It raised questions about the safety ...
Nov 8, 2025
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Is seasonal affective disorder more than feeling sad? Q&A
Seasonal affective disorder, or SAD, is a type of depression that's related to the changes in seasons. Symptoms typically appear in the fall, worsen through the winter months and eventually go away in the spring or summer.
Nov 5, 2025
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Long-term use of melatonin supplements to support sleep may have negative heart health effects
Long-term use of melatonin supplements, often used to promote sleep and address insomnia, is associated with a higher risk of heart failure diagnosis, heart failure, hospitalization and death from any cause in chronic insomnia, ...
Nov 3, 2025
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Why we used to sleep in two segments, and how the modern shift changed our sense of time
Continuous sleep is a modern habit, not an evolutionary constant, which helps explain why many of us still wake at 3am and wonder if something's wrong. It might help to know that this is a deeply human experience.
Oct 28, 2025
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Do Halloween treats hype kids up? Here's how to make sure you (all) get a good night's sleep
Halloween has been growing in popularity in Australia over recent years, with more families embracing the fun of dressing up and trick-or-treating.
Oct 28, 2025
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Humans have an internal lunar clock—but light pollution is disrupting it
Most animals, including humans, carry an internal lunar clock, tuned to the 29.5-day rhythm of the moon. It guides sleep, reproduction and migration of many species. But in the age of artificial light, that ancient signal ...
Oct 27, 2025
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