Stimulating betel nuts are enjoyed by about a tenth of the global population
Nicotine. Caffeine. Betel nuts. You may never have heard of them, but nuts from the Areca palm are hugely popular as a chewable stimulant: Almost a tenth of the global population enjoys them, the BBC reports. A millennia-old tradition, they're the world's fourth-most-popular psychoactive substance, Healthline adds. Their...