Reiki is easily learned and practiced as self-care by anyone who is interested, regardless of the person’s age or state of health. Children can learn to practice, as can the elderly and the infirm. No special background or credentials are needed to receive training. One of the hallmarks of Reiki practice is its simplicity: it can be learned in about ten hours of in-person training, generally offered in group class formats, and doesn’t require knowledge of either subtle bioenergy or healthcare.