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15 hours ago · Social movements use social media for communicating and organizing. Social media has been criticized for a range of negative impacts on children and teenagers, including exposure to inappropriate content, exploitation by adults, sleep problems, attention problems, feelings of exclusion, and various mental health maladies.
15 hours ago · The Yoruba present the highest dizygotic twinning rate in the world (4.4% of all maternities). [33] [164] They manifest at 45–50 twin sets (or 90–100 twins) per 1,000 live births, possibly because of high consumption of a specific type of yam containing a natural phytoestrogen that may stimulate the ovaries to release an egg from each side.
