Melatonin, a hormone available in supplement form and often sold as a sleep aid, may boost long-term memory and help protect from cognitive decline over time, according to a new study out of Japan.
The potential benefits were linked to melatonin and two metabolites that result from the item.
The new study comes from the Tokyo Medical and Dental University; it involved lab mice, not humans, but the researchers say the findings may also apply to people.
The research involved mice faced with novel object recognition, which refers to presenting mice with new and familiar items and observing how they interact with them.
Mice are naturally curious and will spend more time exploring new objects than the ones they’ve seen before.
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