Experts say gait speed, grip strength, balance, and endurance are some of the strongest predictors of long-term independence.

Discover how a total revenue test measures price elasticity to refine pricing strategies and boost business revenue. Learn to differentiate between elastic and inelastic demand.

Trump gets a lot of things wrong when he talks about cognitive tests. He recently bragged to journalists that he “aced” one, and said the doctors at Walter Reed told him no president had taken a ...