213,000 children a year, three quarters of them from falls, and mostly broken arms. The one randomised trial of playground surfacing found the certified material came off worse — and one piece of safety equipment has killed children on climbing frames.
European regulators found 74-89% of retail CFD accounts losing money; India found over 91% of derivatives traders losing. What the regulatory records and trade-level research show about how leverage, expiry and spreads take money from retail traders – including the study arguing the losses are overstated.
Only 42.6% of 25,967 US stocks beat Treasury bills over their lifetime, and the most common outcome was a total loss. What the research on individual investors, day traders and active funds shows about how money is actually lost in the stock market.
Long flights roughly double clot risk from a small baseline, and the risk peaks two weeks after landing. Compression stockings have high-certainty Cochrane evidence behind them, with one caveat worth reading.
The largest prospective study of back belts found 17.1% back pain among daily wearers and 17.5% among those who never wore one. What the evidence supports instead is changing the task.
The composition and expiry rules came from one 2003 appendix, and its author regrets it. What actually takes over accounts is reuse, infostealers and phishable codes.
Virtually all crowd deaths are compressive asphyxia, not trampling, and the word stampede points the blame in the wrong direction. The density ladder, the forces involved, what the Itaewon and Karur investigations found, and the one threshold worth acting on: when you are touched on all four sides, leave.
While you are saving, only the average return matters. The moment you start withdrawing, the order matters enormously – and a bad first decade does permanent damage. Where the 4% rule came from, what Morningstar puts the number at now, and why planning to average life expectancy is a coin flip.
A randomised trial found that using a regular adult cuff on someone who needs an extra-large one overestimates systolic pressure by about 20 mmHg – enough to turn 125/79 into 144/87 on the same arm. What the WHO numbers say about the 600 million who do not know, what SPRINT actually showed, and how to get a reading worth acting on.
A survey of 422 incarcerated burglars found occupancy, police proximity and a dog outranked alarms and cameras, that only about 12% picked a lock, and that fewer than a third cared about lighting or neighbourhood watch signs. What that means for where the money is worth spending.
