Robbin

Health Uptime is one number, 0 to 100, for how a month went. It's measured against you, not against other shippers, so two people's scores aren't two marks on the same test.

60% of it is goal consistency: of the goal periods you set for yourself and have already lived through, how many you actually hit.

40% is metric trend: where this month's sleep consistency, recovery and strain sit against your own trailing 90-day baseline. Strain counts as balance rather than maximum: grinding harder scores the same as stopping.

• Only finished days and weeks count. A week that's still running isn't on the tally, so today can't fail yet.
• A goal on something nothing measures doesn't count against you. It's dropped and named, not scored as a miss.
• No goals yet? The trend takes the whole score. No connected metrics? Goals do. A missing half is dropped, never filled in with a zero.
• A month with no evidence behind it gets no score at all, rather than a zero.
• The weights are the ones stated above, and every Health Uptime score stores the arithmetic that produced it.