Week 3 Crit: Ten minutes, guided

The one technique with direct evidence against rumination. A meditation teacher runs it properly, once, after which the ten minutes are yours to keep or ignore.

8 March 2027

Why this is in an overthinking course#

Not for general wellbeing, and not because it is good for you in the way vegetables are. It is here because it is the one practice in this course with evidence pointing at rumination specifically, the exact thing the other crits have you catching in the act.

Jain and colleagues (2007) ran a randomised trial and found mindfulness meditation reduced rumination more than relaxation training did. That is the comparison that matters, because it is not simply the effect of sitting down and being calm for a while. A 2022 meta-analysis of trials in depressed patients found a reduction in rumination that was real and small-to-moderate.

Small-to-moderate is the honest size. Ten minutes is not going to end your spirals, nobody here will claim it does, and the week 1 lecture already noted that the better-controlled trials found no structural brain changes at all. What it plausibly buys you is a slightly earlier noticing. In a course whose entire premise is catching the loop while it is happening, that is the thing worth having.

Before the session#

Nothing to prepare, and nothing to read. Wear something you can sit on grass in.

In the session#

Revathi Menon, who teaches vipassana-style insight meditation in the Indian tradition, runs the ten minutes properly. Posture, breath, what to do when you notice you have wandered off, and why “clearing your mind” is not the instruction and never was. We have been approximating this for two weeks. The point of today is to stop approximating.

It also matters who is running it. The practice the West measures under the name “mindfulness” was adapted from Buddhist contemplative traditions before it was renamed, and the adaptation is what almost everyone meets first. Week 4’s lecture, Borrowed and renamed, takes that history seriously. Today is simpler. You get the technique from someone who works in a tradition it came from rather than from the paper about it.

The remaining forty minutes are questions, and they should be the sceptical ones. Some things worth asking someone who actually knows.

• What is the difference between meditating and sitting there having thoughts?
• Is ten minutes long enough to be anything other than a gesture?
• What does it feel like when it is going badly, and is that a problem?
• What do you do when sitting still makes the spiral louder, which is what it does for some people?
• What do you make of the evidence above being as modest as it is?
• What did the version that reached us lose?

The part nobody puts on the poster#

Meditation has side effects, they are commoner than the wellness industry admits, and you should hear this before the daily-practice invitation below.

Britton, Lindahl and colleagues (2021, Clinical Psychological Science) followed 96 people through a mindfulness-based cognitive therapy programme. 83% reported at least one meditation-related side effect. 58% of those were unpleasant. 37% had some negative effect on functioning, and somewhere between 6% and 14% reported lasting bad effects, associated with hyperarousal and dissociation. Farias and colleagues (2020) put overall adverse-event prevalence across the literature at around 8%.

Those figures come from eight-week structured programmes, not from ten minutes on a lawn, and not from intensive retreats either. Nobody has published a solid retreat-specific rate. So do not read them as your odds today. Read them as the reason this course invites the practice rather than requiring it, and the reason the question above about the spiral getting louder is on the list.

Afterwards#

Every class from here opens with these ten minutes. You are invited, not required, to do them daily as well. Ten minutes is chosen because it is small enough that skipping it is hard to justify and short enough that nobody has to reorganise their morning.

Nobody checks. There is no log, no streak, and no part of your mark that depends on it. If you decide after four weeks that it does nothing for you, that is a genuinely useful finding, and your log is exactly where it belongs.

Sitting still with your own thoughts is not a neutral experience for everyone. If it isn’t for you, the pass rule applies here as it does everywhere. Sit it out, walk, or arrive ten minutes late by arrangement, with no explanation owed to anyone.