In this section we will discuss the scope of yoga is the treatment of some common diseases like

Diabetes.

Cardiac disorders.

Diabetes

Exercises enhance digestion and help the pancreas and liver function more normally, regulating blood sugar levels.

Here are two exercises useful for diabetes:

Stand with your feet spread shoulder-width apart. Bend forward, with your hands on your knees. Then exhale through your mouth. When your breath is gone, close your throat so that no air will enter your lungs. Now expand your chest, as if breathing, and suck in your abdominal muscles tightly, forming a hollow space. As you do so, try to relax your muscles. Stay in this position until you need to breathe, then relax and inhale slowly. 

Now go into abdominal pumping. Release the muscles so that your stomach returns to its normal position, then suck in the abdominal muscles again. Pump your abdomen in and out until you need to breathe. Release slowly and breathe normally. Repeat the entire exercise three times.

Because of the impact of these exercises on the circulatory system, don't do them during menstruation or pregnancy, after surgery, if you are bleeding or if you have heart disease or high blood pressure.

Cardiac Disorders

Shavasana(Corpse Pose)

This is the preferred yogic asana for relaxation. Lie down quietly on the floor in a mat, flat on your back with your arms by your sides. Concentrate on the flow of your breath. Inhale and exhale, inhale and exhale. During the natural stops in breathing after exhalation (and before inhalation) and after inhalation and before exhalation, stay quiet, silent, for a few seconds, This practice brings tranquility and rest, which are healing to the heart. Remain in savasana pose practicing this quiet breathing for 10 to 15 minutes.

Sun Salutation (Surya Namaskar)

Note: yoga is also an assistive therapy for the treatment of these diseases you must consult an specialist doctor for suggestion in your case.