This is about what research finds, including the part that is rarely mentioned. It is not advice to start or stop meditating, and it is not treatment advice. If a practice is making you feel worse, that is worth raising with a teacher or a doctor rather than pushing through.
Meditation is good for you. Calmer, kinder, less stressed.
That is most of what gets said, and it is not the whole finding.
The word covers very different practices: watching the breath, scanning the body, repeating a phrase, generating goodwill toward others.
They are not interchangeable and they do not do the same thing.
Trials find modest benefits for anxiety, depression and pain, on the same order as other active treatments.
Real, and smaller than the popular claim.
How many regular meditators report an unpleasant or adverse effect from practice?
If nobody asks, nobody reports. Experimental studies that did not ask specifically found around 4%. Studies that asked carefully found ten times that or more.
The difference is the question, not the practice.
A harm nobody measures looks like a harm that does not exist.
That pattern is not unique to meditation, and it is worth recognising.
Most commonly anxiety, low mood, and unusual changes in thinking or perception.
Usually mild and passing.
In the most detailed survey, around one in ten reported effects that interfered with daily functioning, and a smaller share found them strongly unpleasant.
So: common but mild, with a real minority for whom it is not.
Which of these is supported?
Tap an item, then a bucket
Because someone who feels worse while meditating, told it only helps, concludes they are doing it wrong or that something is wrong with them.
Knowing it is documented changes what that experience means.
Most people who meditate find it useful, and the serious effects are a minority.
An honest account includes both, in the same way a medicine leaflet does.
It helps, modestly, for some things. Unpleasant effects are commoner than the reputation suggests and mostly mild. And the reason the estimates differ so much is whether anyone thought to ask.