Yoga is a much easier way to exercise both mind and body than testing Einstein's theory of relativity by racing a beam of light. Avoid a science-related sprain with today's Groupon to Indus Valley Yoga and Retreat Center in Conroe. Choose between the following options:

• For $20, you get five yoga classes (a $40 value).
• For $40, you get a half-day yoga retreat (an $80 value).

Indus Valley Yoga rejuvenates students with gentle, healing yoga classes and monthly retreats, designed to re-establish the body-mind connection. Wellness takes top priority throughout the holistically centered class schedule—yogis at every level of fitness focus on happiness, stress relief, and mental calm while increasing strength and flexibility. Pop into a Yoga for Rejuvenation class, designed to re-invigorate students recovering from an illness, teach the body to balance the metabolism and coddle the pancreas in the Yoga for Diabetes class, or unwind during a Yoga for Stress Management session, which incorporates worry-proof earmuffs to help quiet thoughts. The Indus Valley half-day retreat stretches the restorative class setup into a 9 a.m.–1 p.m. session for nurturing the self, beginning with a soothing two-hour yoga and guided imagery meditation session. An hour of journaling and relaxation by the pool, on the grounds, or in the Indus Valley sauna follows, after which an organic vegan/vegetarian lunch calms appetites. Held in an eco-conscious green studio, students can opt to purchase a chemical-free handmade woven mat; students' old mats can be traded in for 10% off at the time of purchase. Large glass windows create a warm, sunlit space, perfect for meditating, easing into a posture, or encouraging spirit seedlings to grow into mighty soul trees.