It is now believed that intelligence is not uniform over a range of skills, but that different types of intelligence enable an individual to be better at some activities than others. Two of these types are known as crystallized and fluid intelligence. Crystal-lised intelligence incorporates the know-ledge acquired during a person’s lifetime, while fluid intelligence is used to solve and interpret novel situations, and draws upon acquired knowledge as little as possible. Fluid intelligence seems to decline after the age of 50, but crystallized intelligence remains remarkably constant with age. Older people also have the benefit of experience, which often enables them to act more decisively than younger people. Experience enables older people to be versatile in how they achieve their aims and to get around declining abilities by utilizing others (slow and steady wins the race) is usually the way older people reach their goals often doing better at a task than younger, more rash and impatient people.