Tag: been-shown

  • Exercise lowers heart disease risk, even for younger women

    By Kathryn Doyle (Reuters Health) – For women under age 50, spending two and half hours of leisure time each week being active could cut heart disease risk by 25%, according to a U.S. study. While that’s been shown before for middle aged and older adults, less was known about whether exercise would make a…

  • Timeline: Zika’s origin and global spread

    The following timeline charts the origin and spread of the Zika virus from its discovery nearly 70 years ago: 1947: Scientists researching yellow fever in Uganda’s Zika Forest identify the virus in a rhesus monkey 1948: Virus recovered from Aedes africanus mosquito in Zika Forest 1952: First human cases detected in Uganda and Tanzania 1954:…