Patients under regular chiropractic care are less likely to get sick and when they do, they are often sick for a shorter amount of time.  One study found that subjects under chiropractic care had a 200% boost in their immune systems as compared to the control group and 400% for those with cancers and severe illnesses.  Every patient, young or old, is different and so is their healing.  It is important to have a conversation with your chiropractor about your goals and expectations.