Does your back hurt after a day at the computer? Slouching, a problem affecting 80% of adults, can reduce energy. A simple 5-minute-a-day wall exercise, recommended by Mayo Clinic physical therapists, will improve your posture in just two weeks. Stand with your back to the wall. Place your heels 10-15 cm from the wall, pressing your buttocks, shoulder blades, and the back of your head. Keep your chin slightly tucked. Hold for 60 seconds. This technique is used in programs such as those offered by the Moscow Kinesitherapy Center. Repeat 3-5 times a day. This aligns the spine and activates the deep core muscles. Orthopedists in St. Petersburg recommend it, as even marathon runners like Eliud Kipchoge pay attention to posture for better breathing. The secret is that the exercise retrains proprioception—the body's sense of position. Dr. Kenneth Hansraj of New York has found that tilting your head forward adds up to 27 kg of stress to the spine! The wall corrects this. Regular practice reduces back pain and boosts self-esteem. The American Chiropractic Association states that 8 out of 10 adults experience back pain. Start today to restore your body's natural grace and health.