Hi Welcome to HCM I have gone thru your query regarding heart trouble of your parents.It is indeed a matter of concern . Yoga Pranayam Deep Breathing aims to cleanse your breathing, your posture, your thoughts, and your diet in order to achieve a healthier life. proper nutrition is an integral part of a healthy immune system if we take simple ,fat free nutritious diet including all essential nutrients as fiber vitamins minerals veges ,fruit antioxidants as garlic ,ginger onion -whole grain almonds ,walnut Amla , apple jam coconut water all help strengthening our imune system .and pave way for our disease free ,healthy life . Avoid fried , fast foods ,tea ,coffee alcohol meats colas , sodas as it can cause accumulation of toxins in the body and can enhnce further growth of any disease & hamper the process of healing. ,Mental worry and axiety should be avoided at any cost as it slows down the healing process . Take good night relaxed sleep & Meditation , helps further . Avoid constipation as you know it is cause of all ills . The bhujangasana or the cobra pose, helps in stretching the chest and opening the chest area, allowing more blood flow to the heart, thus stimulating it. The Kapalbhati is a breathing exercise which is effective in dealing with diseases of cardiac , and other vital parts of our body since it enhances the absorption of oxygen in the blood stream,while eliminate carbondioxide and thus strenthens immune system and essures health to every part of our body .Pranayam - deep breathing slowly eyes closed - Inhale - Hold - Exhale - Hold Repeat 10 times .Relax . Again do for 10 times and Relax . Lie straight on back keep your body loose like a log /corpse ,ralaxed , hands beside your body . Think of the supreme power giving you strength , .new blood is running in your veins . And all your ailments are going out of you body , you are becoming healthy and healthy --- stay in this position for 3 - 5 mins or more if you wish . Bhujngaasan, Shashakasan , Naukaasan , Dheerag Naukaasan , Pavanmuktaasan , Mandookasan , Yog mudrasan Can choose any 3-5 of these asanas , to do everyday with breathing exercises and !0 -20 mins walk .All should be done within the capacity of the person .Dont over do Vajarasan should be done 5 - 10 mins after every meal . It strengthens digestion system , helps digesting food and eliminate gas & constipation thus helps in wellbeing of heart . lemon juice with water before meals twice . Turmeric powder with a cup of hot milk before bed time ,helps kill all types of bacteria Arjunaarisht is a good Ayurvedic heart tonic after meals To unblock heart arteries you can use Homeopathic Cratagus Q /10 -20 drops 1/4 cup of water 4 hourly Baba Ramdev s Yoga center are every where . biggest is in Rishikesh .It is Good idea to stay .you can stay there and learn . Take benefit . I don t know which city you are in ? To advise proper place . Hope it helps solve your query .If any doubt ,mail at drsuchda@gmail.com . Take care All the best dont hestate to get back if have further query .