Dementia remains a leading cause of disability and dependency among older adults, affecting an estimated 55 million people globally, according to the World Health Organization.

Brain changes that start years before dementia symptoms appear may affect metabolism, appetite, mobility, and daily function, Dr. Wu says. All of these things can lead to unintended weight loss.

Despite burning fewer calories than high-intensity exercise, they can also be effective ways to lose weight. Fitness expert Gavin Cowper ... people to drink one beverage before lunch READ MORE: ...