Wll first of all start a little hard to see how much would be the most your friend can do and then go slowly so that the muscle gets used to fast movement but especially with a correct diet that must follow step by step.
I hope this works for you
"If inside, seek protection from Windows and hanging objects."
Aerobic exercise improves your cardiovascular fitness by increasing your capacity to use oxygen. It boots your HDL and lowers your LDL (the bad cholesterol in your body. Aerobic exercise reduces the risk of getting heart disease, high blood pressure, type 2 diabetes, colon cancer & breast cancer. It can also reduce anxiety, stress and depression, as well as instilling a general sense of well-being. Regular aerobic exercise has even been shown to have the potential to increase your lifespan.
Here are some adjectives for heartbeat: sounder, slower, ancient and almost silent, steady exotic, rhythmic, cosmic, reassuringly slow, reassuringly slow and steady, tremendous, wild, deep empathetic, hypnotic, primal, rapid or irregular, slow, eternal, rapid irregular, single, slow, gigantic.
In a healthy adult, the heart makes two sounds, commonly described as 'lub' and 'dub. ' The third and fourth sounds may be heard in some healthy people, but can indicate impairment of the heart function. S1 and S2 are high-pitched and S3 and S4 are low-pitched sounds. Done some research hopefully this will help