what's "older"? I've been sitting at computers about 20 yrs, but I'm not 40 yet... I run, bike or swim. 1 or more of those every day. Looking into yoga, and s

what's "older"? I've been sitting at computers about 20 yrs, but I'm not 40 yet... I run, bike or swim. 1 or more of those every day. Looking into yoga, and some additional strength training (pushups, pull ups, core exercises)