The following article discusses some of the immediate benefits to using meditation daily. Stress reduction is the greatest benefit which in turn will keep your immune system stronger. Though by itself it is not a cure all.
One must access his or her life, decide what is most important, clean the clutter, and utilize that which serves rather than hinders.
Read what Deepak Chopra has to say on the subject. As a member of Care2 I enjoy receiving his insight from his books that are so popular. A gentle reminder to listen.