You must be a member to view this class! Get 14 days of unlimited Pietra Fitness workout videos, then pay just $9.99/month. You may cancel your membership at any time. Sign Up Today Already a member? Sign in here Natural Ways to Increase Energy by: Elizabeth Hlavinka, Certified Pietra Fitness Instructor We all get the afternoon slump. It happens whether we are at work,…To access this content, you must purchase Monthly Online Studio Membership, 1-Year Online Studio Membership or 3-Month Online Studio Membership.