Mind & Stress
Mental health, stress and brain claims checked against the studies: meditation, sleep, phone habits, dopamine, dementia risk and mood supplements. What the trials found, with every source linked.
-
Brain rot is partly real: 71 studies link heavy short-video use to worse focus, but cause is unproven and lab memory harm was short-term.
-
A study of 12,772 adults tied heavy sweetener use to faster decline under age 60, but no study shows aspartame causes memory loss in people.
-
Screen use is linked to at most 0.4% of the differences in teen well-being, but compulsive social media use may affect mental health in some teens more.
-
Across 218 trials, exercise helps depression by a moderate amount. In the few direct tests it did about as well as talk therapy or antidepressants.
-
A dopamine detox promises to reset your brain, but no registered trial has tested it. What dopamine really does, and the habit tools that actually help.
-
A school phone ban clears phones from class fast, but studies so far find no mental-health boost on its own. Here is what changes, what doesn’t, and why.
-
An Alzheimer’s blood test can confirm amyloid from one draw. All four FDA-cleared tests are for people with symptoms, and 1 in 5 results answers nothing.
-
Partly. In a digital detox trial, 467 adults were asked to block mobile internet for two weeks. Most did not fully stick to it, yet 91% of finishers improved.
-
How strong is the shingles vaccine dementia link? A birthday cutoff in Wales made the best test yet. Here is what it shows, and what it still cannot prove.
-
Is deep sleep brain cleaning real? The largest human trial found no clear overnight difference, and mouse studies now disagree. Here is the honest evidence.
