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Aging is difficult, both emotionally and physically.

Everyone deals with aging in different ways, sometimes accepting and sometimes fighting the tides of time.

Most would assume that each year older would equate to our bodies aging and changing one year’s-worth more.

Humans Age in Bursts, New Study Finds

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However, certain periods bring on dramatic changes.

Stool, blood, nasal, skin, and oral samples were taken.

The researchers then assessed these samples for 135,000 types of molecules and microbes contained within or on the samples.

Humans Age in Bursts, New Study Finds

Photo: ALEBLOSHKA/Depositphotos

Large shifts in the molecules and microbes studied indicated periods of more intense aging change.

The first occurred around age 44, the second at about 60.

Initially, the researchers thought the dramatic changes around 44 were perimenopausal and that women accounted for this data.

Humans Age in Bursts, New Study Finds

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However, men show significant shifts as well.

Similarly, after 60, risk greatly rises for certain conditions such as cardiovascular conditions.

The body after 44 is less able to process alcohol.

And after 60, metabolism drops significantly.

Were not just changing gradually over time.