You have 140+ IQ if you can find the mistake in 5 seconds!

If you can find the mistake in this bridge picture in 5 seconds, you are among the top 1% with the highest visual acuity.
The Hill

Analysis links fluoride exposure to low IQ but finds ‘high risk of bias’ in most studies

An analysis of more than 70 studies on fluoride and IQ levels concluded there was a relationship between higher levels of the common water additive and lower IQ levels in children, though a large ...