Widespread destruction from the U.S-backed Saudi airstrikes has displaced over a million people in the region.
A third of dementia cases could be prevented by making environmental and life-style changes starting in childhood, scientists have claimed.
The United Nations says some 10,000 of Yemeni children, all under five years of age, have lost their lives during the past year alone.
The World Health Organisation has warned about the extremely alaming rate of Zika virous around the world and has called for an emergency meeting.