Those who practice it regularly know that yoga not only contributes to mental relaxation but can also build strong muscles. There may be people who associate yoga with little more than incense sticks and chanting "Om," but we know that there's much more to this philosophical teaching originating in India. Certain asanas can actually strengthen muscle groups and thus promote beautiful, flat muscles.
With the following series of exercises, you'll not only lose your belly fat in an instant; you'll harmonize your body and mind, achieving a state of complete physical and mental relaxation. That's the beauty of yoga: It's not an "either/or" situation. In yoga, you'll find relaxation and muscular challenge at the same time.
The classic: Plank
The plank is one of the classic yoga poses and is popular with yogis and fitness enthusiasts alike. And for good reason: The plank pose not only creates a flat stomach, but also works the shoulders, buttocks, and legs. This asana is a true all-rounder.
And this is how it works:
Your starting position is lying on your stomach, with your hands close to your shoulders. Now point your toes, tense your stomach, legs, and buttocks, and push yourself upwards with force. Your arms are now fully extended, and your hands and shoulders form a line. Make sure your pelvis isn't too high, but also that your back isn't arched. You should look like a leaning plank. 
For the side section: Side Plank
The side plank is a variation of the plank and is particularly effective for the obliques. At the same time, it also works your hips. All I can say is: goodbye to love handles!
And this is how it works:
From the plank position, slowly shift your weight to your right side. Lift your left hand off the floor, extend it straight up, and bring the inside of your left foot to meet your right. Make sure your hips don't collapse. For the best effect, push them up nicely. 
Plank Variation: Spiderman Plank
As you can see, the plank is a true all-rounder when it comes to your abdominal muscles. The Spiderman Plank is another variation of the popular asana that works both the oblique and rectus abdominis muscles, depending on how you position your knee.
And this is how it works:
From the side plank, return to the classic plank position. Now bring your right knee straight toward your right elbow to engage your rectus abdominis. Hold this position for several breaths and return your knee to the starting position. Then bring your right knee next to your right elbow, this time with your foot facing outward and roughly level with your knee. 
For a tight core: Boat Pose
If you want to train your abdominal muscles, you can't avoid the Boat Pose in yoga. It's very effective for training the rectus abdominis muscles, and its variations can be performed by both beginners and advanced practitioners.
And this is how it works:
Sit on your mat and place your feet on the mat. Take a deep breath, then lift your feet off the mat and bring your lower legs parallel to the mat. At the same time, lower your upper body slightly backward and extend your arms forward. In this pose, make sure your back is straight and your sitting bones are fully on the mat. For a more advanced variation, you can now extend your legs upward so that your upper body and legs form a V. 
Not just for balance: Crow Pose
When you think of Crow Pose, most people immediately think of balance and arm muscles. That's absolutely true – Crow Pose trains your balance and builds strong arms and shoulders. At the same time, it also strengthens your core muscles, because you have to engage your abdominal muscles to push your hips up and maintain the position.
And this is how it works:
First, get into a squat position. Place your hands on the mat about shoulder-width apart and fan your fingers out. Now begin to press your shins against your upper arms, pressing your knees into your armpits. Then carefully lift one foot at a time from the mat and shift your weight slightly forward. Look down at the mat. Now it's time to maintain balance! 
For advanced users: The Side Crow
The Side Crow also does much more than just train your balance. It also builds phenomenal obliques. At the same time, you'll work your arms and shoulders.
And this is how it works:
Begin in a squatting position on the balls of your feet. Now rotate your torso to the left and bring your right elbow and the outside of your left thigh together. Press your hands firmly into the mat, about shoulder-width apart. Begin to bend your elbows, with your left thigh pressing firmly into your right elbow, and shift your weight forward. Keep your gaze directed downward. Carefully lift your feet off the mat.
