Accidental falls are the leading cause of death among older adults in the United States. One third of all adults aged 65 and older report falling each year. Elders living in institutions have 3 times the chance of falling compared to those living in their homes. Accidental falls are also very common in children of all ages. Young children learning to walk and toddlers are at greater risk of accidental falls resulting in possible cranio-cerebral injury. Practical implications for fall-prevention programs such as balance-training programs or mobility aids to reduce restrictions on lateral stepping movements can reduce accidental falls. This book presents research findings on the causes, preventions and interventions that impact fall risk.