The complaint is the first pillar and it's searched all year round. Neck, sciatica, headaches from screen work: each page that treats one of them properly picks up bookings from people who want an appointment today.
The occasion is the second pillar and it follows the calendar. Christmas, Mother's Day, a birthday — the gift voucher page has to exist weeks in advance, or it will only be ready for the year after.
In the map pack this keyword rewards completeness above everything: hours, photographs, treatments, reviews. Gaps here are read as a warning sign considerably faster than they are in other trades.
Sports and pregnancy massage deserve their own pages. They're searched separately, by people with a clear reason and a willingness to travel, and a general list of treatments never surfaces for either.