Certificate of Mental Age

Reads as living at the pace of late youth: ages 18 to 24.

A first apartment still half-furnished and a first paycheck already spent are both logged here, alongside a job still being learned day by day. Curiosity about whatever hasn't been tried yet shows up on nearly every applicable answer. A free evening reliably goes to the new option over the familiar one.

Note: an appetite for the untried at this pitch draws on a short track record so far, and enthusiasm at this level is logged as prone to leveling off with time.

Recommended: keep at least one commitment from this stretch on the books long enough to build a track record of its own.

Reads as living at the pace of early adulthood: ages 25 to 31.

A working role and a household both read as settled into real shape, with plenty of runway still showing on the page ahead of them. Entertainment tastes hold a recognizable core while still making room for something new, and the milestones logged here are landing close to the pace most peers keep.

Note: a working shape settled this quickly still calls for regular rechecking, since the surrounding plans remain genuinely open to change.

Recommended: name one new discovery from the last month and one old favorite, and keep both on the calendar.

Reads as living at the pace of established adulthood: ages 32 to 40.

The file lists a working role well past its early adjustment period and a household increasingly centered on caring for others as the daily default. Three separate categories on the sheet — activity level, new technology, and entertainment choices — land at the same even split between the familiar and the new.

Note: an even mix of the familiar and the new, held steadily, tends to draw on real weekly planning time to keep in balance.

Recommended: pick one household task currently on autopilot and hand a piece of it off this month.

Reads as living at the pace of midlife: ages 41 to 49.

Reviewed here: a long-settled working role, a caregiving load that has started to ease, and a general lean toward rest and the tried-and-tested. That lean is not a one-off — it shows in activity level, technology adoption, and entertainment choices alike, in about nine cases out of ten.

Note: leaning on the tried-and-tested this consistently narrows the odds of a genuine surprise turning up in an ordinary week.

Recommended: block one evening a month for something genuinely untried, on top of the usual routine.

Reads as living at the unhurried pace typical of the fifties: ages 50 to 58.

Most milestones most people reach by now already sit behind, and a major shift in household shape has recently been crossed or sits close at hand — both entries appear on the same sheet. Attention splits close to evenly between what's ahead and what's already lived; entertainment and technology both lean toward the familiar three times out of four.

Note: splitting attention evenly between what's ahead and what's already lived takes real, ongoing effort to keep balanced.

Recommended: write down one plan still ahead and revisit it alongside whatever's already been crossed off.

Reads as living at the pace typical of the early sixties: ages 59 to 68.

Retirement recently arrived, or sits close enough to see from here, and the caregiving role logged on this sheet may be starting to run the other way. Present-day concerns and memory take up more of the attention than plans still ahead. Rest wins out over activity on more days than not.

Note: attention that leans toward the present and toward memory this consistently can let a plan still worth making slip past unnoticed.

Recommended: pencil in one activity for the week ahead before the day's plans fill in around it.

Reads as living at the pace of older adulthood: ages 69 to 79.

The working years are long over here, and every major milestone most people go through is already crossed off, both on the same sheet. Interests have narrowed to a settled handful, held onto closely rather than chased anew, and rest is the default across an ordinary week. New technology and passing trends go untried roughly eighty percent of the time.

Note: a settled, narrowed set of interests held this closely leaves less room for something to be added into the mix.

Recommended: revisit one long-held interest and note what specifically still holds the attention.

Reads as living at the pace of advanced age: ages 80 to 98.

Every major life transition is marked complete, and a settled handful of interests, held onto closely, account for most of the attention that's left. What's left of the day is split between the present and memory, with being looked after, in some everyday measure, now simply part of the routine.

Note: being looked after in some everyday measure, at this level, draws in other people's time and attention as well as one's own.

Recommended: keep one small routine of being looked after on the books, alongside one still chosen freely.