https://www.smashingmagazine.com/2023/10/passkeys-explainer-future-password-less-authentication/

Weed is actually terrible for sleep, and I say this as an everyday user.

It stops you from entering rem sleep. People report a lot of dreams after quitting because of a phenomenon known as “rem rebound” where you will have a lot of rem sleep.

And aptitude tests themselves are flawed and usually only measure certain quantities or qualities of intelligence, and are not really a great marker for general intelligence (this is including IQ tests which have a very racist origin and history)