Back pain is the headline. Yoga beats non-exercise care for function and pain at three and six months ¹, and it's a named first-line non-drug option for chronic low back pain, next to physical therapy ². In the cleanest trial it matched physical therapy on pain and disability, and the benefit held at a year ³.

Mood is the quiet second win. The effect on depressive symptoms lands in the same range as aerobic exercise, without the running ⁴.

And the numbers move. Eight to twelve weeks drops systolic blood pressure by five to ten points ⁵; sleep improves most in women over forty ⁶; balance and flexibility hold up in older bodies ⁷.

It works three ways at once, delivered as a package: it loads tissue at long muscle lengths, biases the nervous system toward calm through slow breathing, and gives the mind an hour that isn't email. Trials that try to split the exercise from the meditation mostly find both beat doing nothing and roughly tie each other ⁸.

The move that decides it is where you sign up, not which pose you learn.

A home app (Yoga with Adriene is free; Down Dog and Glo cost about a coffee a week) works if studios are out of reach, but adherence drops without the social anchor. Put it on the calendar like a meeting.

The order is predictable even when the dates aren't.

• Weeks two to four: sleep onset gets easier, and small annoyances stop landing as hard.
• Weeks four to eight: you put your socks on standing up, and the mood lift starts showing up in your week ⁴.
• Weeks eight to twelve: back pain drops meaningfully ¹, and the blood-pressure number is a few points lower at your next physical ⁵.
• Year two: you're older and still putting your socks on standing up, and the parts of life you'd have called ageing arrived later ⁷.