- Children (female/male)
birth until 17 years
- Babies (female/male)
birth to ~24 months
- Toddlers (female/male)
~2 to 4 years
- Preteens (female/male)
~10 to 12 years
- Adolescent children (female/male)
~13 to 17 years
- Adults (female/male)
18 years until death
- Young adults (female/male)
~18 to 40 years
- Middle-aged adults (female/male)
~40 to 60 years
- Old adults (female/male)
~60 years until death
Definitions come from, but are slightly modified from, the Physical stages of human life as found at Wikipedia:Human development (biology).
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