I’ve heard my fair share of theories describing the causes of jet lag, but none explain it fully. Sometimes it’s worst going east, other times it’s worst going west. Regardless of the direction, I’ve come up with a short routine I do whenever I get to my hotel room after a long flight.The primary theory behind this routine and these particular exercises is to calm the nervous system by using a few simple yoga postures. The main idea is that “grounding” your energy — think, grounded electrical wiring — can have a beneficial and catalytic effect on all your systems. Below, I’ve also included a brief meditation to enhance the grounding effect and help calm the mind. Here are four easy exercises you can do to help combat jet lag after a long flight.1. Square Lunges to Anchor the PelvisThe hips, or pelvis, is essentially the foundation for the spine and the nervous system. Whenever we are tense, anxious or generally disturbed, like after a long flight, the general energy of the pelvis is pulled up and stays tight. Imagine how your shoulders tense up toward your ears when you’re frightened — well, your pelvis does the same thing. Therefore, this exercise can anchor your hips back down toward the floor, calming your hip flexors, lower back and spinal muscles.Find a padded surface so it’s comfortable to kneel on the floor (note: a folded towel will work)Step one foot forward into a lunge with the back knee on the groundGently lunge forward toward the front foot, stretching the back your thigh muscleBack out of the forward lunge until your hips are directly over your back knee (both knees will be 90 degrees)Stick your butt out so there’s an inward/upward curve in your lower backPlace your hands on your waistline (at the top of the pelvis) and anchor your pelvis down toward the floorUse your abdominal muscles and lower back muscles to lift your torso up (imagine that the top of your head is pushing up against the ceiling)Hold this pose for three to five deep breathsSwitch legs to repeat the move on the other side2. Bridge PoseThis is a basic backbend that grounds your energy and gives relief to the neck and shoulders.Lie on your backBend your knees with your feet flat on the floor directly under themLift your hips up until you feel a tone in the buttocks, but avoid lifting so high that the butt muscles clenchWith your elbows on the floor, bend them to “robot arms” position, kind of like you’re holding an invisible box in front of your chestTone the legs by gently pressing the feet down and pulling them backward toward your shoulder without actually moving themLift your chin away from your chest until there is a natural, gentle curve in your neckPress your elbows and back of your head to the floor (think toned muscles, not tense muscles)Stretch your knees away from your hips (try to keep pulling the feet backward energetically)Hold this pose for 10-12 deep breathsNotice how the chest and the heart region are open during this posture3. Legs Up The WallThis is a restorative pose to calm the nervous system and give relief to the primary glands of the endocrine system. The pituitary, pineal and thymus glands regulate numerous functions in the body, yet they sit under the weight of the brain. Taking the legs up the wall forces the circulatory system to function differently and relieves the pressure on the upper surface of these primary glands.Lie on your side near a wall and slide close enough so that your butt is at the base of the wallYou may use a thin blanket or pillow as support under your hipsTurn onto your back and extend your legs up the wallRest your hands on your stomach in order to feel the rise and fall of your breath (this will help you slow down and take deeper breaths, too)Remain here for five to 10 minutesRoll to your side to safely exit the pose — pause on your side for a few breaths before sitting up.4. MeditationA meditation practice has numerous benefits, including calming any anxiety that often accompanies jet lag.Sign up for our daily newsletterEmail addressSign upI would like to subscribe to The Points Guy newsletters and special email promotions. The Points Guy will not share or sell your email. See privacy policy.Sit comfortably on the floor (or with your back against wall for extra support) or in a supportive, upright chairUse pillows and blankets to support your knees, ankles and elbowsClose your eyes and listen to the sound of a deep nasal breath — make a whisper sound with your breath in order to hear it more easilyThink of an image like a waterfall or leaves falling, and imagine the energy of different parts of your body flowing down into the earth. Spend a few minutes on the hip region, a few minutes on the head/brain region and a few minutes on the heart/chest regionFor the last few minutes, allow your thoughts to move wherever they naturally go, doing your best to not judge what you think or where your thoughts go, but simply to notice them as if you were watching a movieLie on your back for three to seven minutes following the meditationBottom LineI hope these tips help with your jet lag. Give them a shot when you first get to your hotel and then again before you go to bed. For more information, check out some of my therapeutic videos. Safe travels. Namaste!Ross Rayburn is a guest columnist for TPG. He teaches yoga workshops, trainings and retreats all around the world. You can follow him on Instagram and Twitter and at www.rossrayburn.com.All images by Brendan Dorsey, TPG’s Assistant Editor.