Health and disease

the long version

Everyone is an individual and we're all different in many ways, but every human being on Earth follows a similar pattern of changes from birth to childhood, through adolescence to adulthood, and into old age. This book shows how our health and our ability to deal with disease change over time, too - such as how our immune system develops, the role of our genes and nutrition, the impact of unhealthy behaviours, and the effects of aging.