The fatter you are, the more r-slurred you become.

I know this because I have experience both being super fat and just normal amounts of fat and declining.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3813310/

Also this. Fatter people grow up to be dumber.

https://www.google.com/search?client=firefox-b-d&q=does+exercising+increase+iq

Also this.

The more fat I lose, the smarter and more competent I get. Coincidence? I think not.

The west keeps getting dumber, and the west is also having consistently higher BMI over time. Coincidence? I think not.

Therefore, if you want to avoid being r-slurred, you must become fit.

Fit people are hotter people. Hotter people are smarter people because they are fitter people.

In conclusion, good looking people are naturally smarter than you all things being equal.

Become fit, become good looking, become smart, become rich.