科学First-born children have a higher risk of autism and ADHDA study conducted in the United States found that first-born children are more prone to health issues such as ADHD and autism.Adevărul·图片: Adevărul相关El Nino'ya bağlı aşırı sıcaklıklar 9 ayda 451 bin ölüme yol açabilirThe megatsunami in Greenland shook the Earth every 90 seconds for 9 days
