Advancements in medicine and nutrition have allowed us to live longer than ever before. At later years, our bodies start to not work as well. Muscle starts to break down, bones start to weaken, and your mind becomes less sharp. Regular light, load-bearing activity such as walking can keep your bones stronger longer. Activities like water aerobics can keep your muscles from breaking down too. Keeping a regular routine is good for your mind. Activities such as crosswords and reading can help maintain your cognitive skills too.