Public toilets play a role in community health and individual well-being. Where toilets are available, people can enjoy outings and physical activities in their communities. By letting people get out of their cars and onto their feet, bicycles and mass transit, public toilets can contribute to improved environmental health. Mental well-being is enhanced when people are out with families and friends and know a place "to go" is available. Public toilets also serve people who are "toilet challenged". First, some people need to go very frequently, including young and old people, people who are pregnant or menstruating, and those with some medical conditions. Second, some people need toilet access urgently, suddenly and without warning: such as those with chronic conditions such as Crohn's disease and colitis, and those temporarily afflicted with food-borne illnesses. The inability to satisfy essential physiological needs because no toilet is available contributes to health issues such as urinary tract infections, kidney infections, and digestive problems which can later develop into severe health problems. Inadequate access to a public toilets when required can lead to substantial problems for people with prostate problems, people who are menstruating or going through the menopause, and people with urinary and fecal incontinence. A 2015 study by the National Center for Transgender Equality found that 8% of transgender Americans reported having developed urinary tract infections, kidney infections, and other kidney-related problems as a result of avoiding, or not being granted access to, the facilities. In another survey, the group DC Trans Coalition found that 54% of its respondents (located in Washington, DC) reported physical problem from avoiding using public toilets, such as dehydration, kidney infections, and urinary tract infections. According to the Government of Australia, more than 3.8 million Australians of all ages are estimated to suffer continence issues. This represents 18% of the Australian population. Therefore, the Department of Health and Ageing maintains the National Public Toilet Map to enable the public to find the closest facility. Workers have legal rights to access a toilet during their work day. In the United States, the Department of Labor's Occupational Health and Safety protects workers' rights to toilet breaks because of the documented health risks. This protected right to a toilet is a function of the workplace and is lost when workers leave the workplace. If bus and truck drivers on timed schedules have difficulty in accessing toilets, this puts them at risk