Overall, the investigators anticipate recruiting 66 adults with memory complaints and diagnosed with MCI for adults 55 years old and older. Subjects will either receive: (1) MET class for 60 minutes per week; or (2) Kundalini yoga and Kirtan Kriya meditation class for 60 minutes per week. All assessments will be completed immediately after the interventions for a total of 10 visits in 12 weeks and a follow-up visit at 6 months (24 weeks)to monitor the overall benefit of the intervention.