Botswana faces major demographic challenges from AIDS, including a significantly lowered life expectancy. The AIDS epidemic strains health services and has widespread economic and social impacts, such as lost income from illness, impacts on children and orphans, and reduced economic production. Cultural practices that encourage unsafe sex, such as beliefs about virginity and widow inheritance, make prevention difficult. The government is working to address the problem through prevention education, testing, and providing free anti-retroviral drugs, but control remains a challenge due to entrenched cultural traditions.