Gender differences in susceptibility and symptoms of disease and response to treatment in many areas of health are particularly true when viewed from a global perspective. Much of the available information comes from developed countries, yet there are marked differences between developed and developing countries in terms of women's roles and health. The global viewpoint is defined as the "area for study, research and practice that places a priority on improving health and achieving health equity for all people worldwide". In 2015 the World Health Organization identified the top ten issues in women's health as being cancer, reproductive health, maternal health, human immunodeficiency virus (HIV), sexually transmitted infections, violence, mental health, non communicable diseases, youth and aging.
Getting enough water also is important. Many experts recommend at least eight 8-ounce glasses of water daily—more if you exercise frequently or are exposed to extremes of heat and cold. The 2010 Dietary Guidelines for Americans emphasize drinking more water and other calorie-free beverages, along with fat-free or low-fat milk and 100 percent fruit juices, instead of calorie-packed regular sodas.