By Newsbreak Producer Hoosen Ebrahim - As caffeine remains the world's most widely consumed psychoactive substance, emerging scientific evidence reveals its effects are highly variable among South Africans. This, as an estimated ten percent of individuals classified as slow metabolizes, who face heightened risks of anxiety and heart palpitations from minimal doses. Health experts have further warned that natural aging alongside hormonal fluctuations during perimenopause and menopause can drastically intensify these negative side effects and alter safe daily intake limits. South African Rooibos Council spokesperson Adele du Toit elaborated on how these metabolic differences are shifting local consumption habits toward caffeine-free alternatives...