Melatonin News and Research

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Melatonin, also known chemically as N-acetyl-5-methoxytryptamine, is a naturally occurring compound found in animals, plants, and microbes. In animals, circulating levels of the hormone melatonin vary in a daily cycle, thereby allowing the entrainment of the circadian rhythms of several biological functions.

New review challenges the eight-hour ancestral sleep myth

Everyone knows the number. Eight hours. It sits on wellness dashboards, on pediatric handouts, on the label of the melatonin bottle in the medicine cabinet.

25 Aug 2026

Review uncovers how tryptophan metabolism affects female reproductive health

In recent years, issues concerning female reproductive health have become a global challenge that cannot be ignored.

24 Aug 2026

Jet lag may disrupt athletes' gut microbiome and slow recovery

The interplay between jet lag and gut microbiome affects athlete performance. Strategies to manage these disruptions are crucial but not yet fully established.

30 Jul 2026

Time zone changes disrupt vital gut bacteria during travel

A dream holiday, an exotic destination, a long-haul flight, and finally some well-deserved rest. The problem is that many travelers arrive at their destination only to spend the first days of their vacation struggling with fatigue, sleep disturbances, low energy levels, and digestive issues.

23 Jul 2026

Melatonin may safely reduce chronic musculoskeletal pain, study finds

A sleep supplement widely used to treat insomnia could help reduce reliance on some of the most common and potentially harmful pain medications, new research from the University of Sydney suggests.

30 Jun 2026

Melatonin dampens fetal membrane inflammation linked to preterm birth

Melatonin reduced infection-related inflammation in human fetal membranes in an ex vivo model. The study suggests that this effect works partly through melatonin receptors and by suppressing the TLR4/MyD88/NF-κB pathway.

28 Jun 2026

Breastfeeding linked to longer sleep duration in one year old infants

The World Health Organization (WHO) recommends exclusive breastfeeding for the first six months of life because of its many proven benefits, including protection against infections and support for healthy long-term development.

26 Jun 2026

Melatonin improves skin flap survival by reducing ferroptosis

Random-pattern skin flaps are widely used to repair defects caused by trauma, burns, tumor removal, and other injuries because they can be designed without depending on a single named blood vessel.

23 Jun 2026

Infant limb movement during sleep follows a rhythmic cycle

Infants' activity whilst sleeping is rhythmic, according to a new study from the University of Surrey. Findings provide crucial insight into sleep cycles of infants in the first year of life.

17 Jun 2026

Reinforcing daily rhythms helps the brain recover after stroke

A new study from scientists at the University of Rochester Medicine suggests that reinforcing the body's natural daily rhythms to improve sleep could help the brain recover after a stroke, pointing to a potential new strategy to improve brain waste clearance and outcomes long after the initial injury.

15 Jun 2026

The best meal timing for blood sugar may be earlier dinners

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9 Jun 2026

Microplastics found in human bile may be associated with gallstones

Findings show microplastics in bile may trigger cellular senescence, suggesting a link to gallstone disease and highlighting the need for further research.

9 Apr 2026

Study reveals bile as reservoir for microplastics in humans

Plastic pollution has become one of the defining environmental issues of modern life, and microplastics are now known to enter the body through food, drink, and air.

6 Apr 2026

How video gaming may shape sleep, diet, and activity across the lifespan

This narrative review found that video gaming can have both benefits and risks for health across the lifespan. It may provide short-term stress relief and social connection, but frequent or prolonged gaming is also associated with sedentary behaviour, poorer sleep, disrupted eating patterns, and lower diet quality, with effects shaped by age, sex, timing, content, and motivation.

31 Mar 2026

Scientists identify common molecular program across multiple brain tumor types

Research uncovering the origin of pineoblastoma, a rare pediatric brain tumor, has also revealed a dependency across multiple brain tumor types that share a similar molecular program.

6 Mar 2026

Experts share essential tips for maintaining healthy sleep during daylight saving time

The month of March brings the promise of warmer weather and longer days ahead. But adjusting to the change in clocks can be tricky. Here's how you can maintain good sleeping habits when the clock jumps forward on March 8.

4 Mar 2026

New compound advances body clock independent of dosing time

A collaborative team including Emeritus Professor Tei H. (Kanazawa University), Associate Professor Takahata Y. (Osaka University), Professor Numano R. (Toyohashi University of Technology), and Associate Professor Uriu K. (Institute of Science Tokyo) discovered that Mic-628 selectively induces the mammalian clock gene Per1.

4 Feb 2026

Eating melatonin-rich foods is linked to lower obesity and depression rates

This cross-sectional analysis of 8,320 Brazilian adults quantified melatonin intake from habitual diets and examined associations with multiple chronic health outcomes. Higher dietary melatonin intake was inversely associated with obesity and depression in a non-linear pattern, with no significant associations observed for other conditions.

28 Jan 2026

Newly discovered compound can advance the body's internal clock

A Japanese research team has discovered a new compound that can advance the body's internal clock—offering hope for faster recovery from jet lag and better adaptation to night-shift work.

28 Jan 2026