Why tiny amounts of vitamin B12 matter more as we age

Two micrograms is an almost unimaginably small amount. It weighs less than a tiny fragment of a grain of table salt. Yet adults need only around this amount of vitamin B12 each day, depending on the guideline used, to support ...

From speed to stability: How aging changes the way we walk

Reasons why our walking becomes slower and more tiring with age have been uncovered by new Australian research—with findings showing the body increasingly sacrifices efficiency to stay upright. The findings are published ...

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