Sleep

© iStock/ aquarius 83men

Could melatonin promote healthy ageing?

By Tim Cutcliffe

Lack of melatonin has been widely linked to sleep disorders and disturbances in the human circadian rhythm or body clock. But the hormone may also benefit sleep-related aspects of other conditions, say researchers.

© iStock/ Nerthuz

Can potassium affect your body clock?

By Tim Cutcliffe

Circadian rhythms in human red blood cells (RBCs) may be regulated by potassium, according to a new study in Nature Communications.

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