Time to get the bike out! It's easy on the joints and a great workout. Also, anyone who rides a bike is going to have stronger legs which is correlated with a reduced risk of falling.
"During the course of the study, regular cycling cut the risk of death from any cause by 41%, the incidence of cancer by 45% and heart disease by 46%.
The cyclists clocked an average of 30 miles per week, but the further they cycled the greater the health boon.
Walking cut the odds of developing heart disease but the benefit was mostly for people walking more than six miles per week."