Aikido is a traditional Japanese martial art, developed at the turn of the 19th century, popularized after the second world war, and now practiced across the world.
As an art, Aikido focuses not on causing damage to an opponent but in guiding their energy away from oneself, and resolving conflict harmoniously. Through paired and group practice, students learn how to move from their center and control an attacker's momentum.
There's no age limit to aikido, or need for huge size or strength. People from all walks of life can learn and benefit from training.