Walking is one of the best things for human health – and it’s free! Keeping thin is high-stakes business for film stars and models, and we look at some of the diets they follow, both the sensible and the dangerous. Gluten-sensitive celiacs must stay clear of wheat, rye, barley and oats. An unused bank vault is now home to an underground vegetable garden in Japan. While soccer can be a great game for promoting fitness, it turns out that repeatedly heading the ball may have dire long-term consequences. Dogs are trained to help Alzheimer’s patients, including knowing the way home and offering persistently loyal companionship.