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Diabetes:- Definition:- Diabetes happens when your body isn't able to take up sugar (glucose) into its cells and use it for energy. This results in a build up of extra sugar in your bloodstream. Etiology:- The cause of diabetes, regardless of the type, is having too much glucose circulating in your bloodstream. However, the reason why your blood glucose levels are high differs depending on the type of diabetes. Causes of Type 1 diabetes:  This is an immune system disease. Your body attacks and destroys insulin-producing cells in your pancreas. Without insulin to allow glucose to enter your cells, glucose builds up in your bloodstream. Genes may also play a role in some patients. Also, a virus may trigger the immune system attack. Cause of Type 2 diabetes and prediabetes:  Your body’s cells don't allow insulin to work as it should to let glucose into its cells. Your body's cells have become resistant to insulin. Your pancreas can’t keep up and make enough insulin to overcome...

Cancer:- Definition:- Cancer is a large group of diseases with one thing in common: They all happen when normal cells become cancerous cells that multiply and spread and make tumor. Cancer is the second most common cause of death. Etiology:- Cancer is a genetic disorder. It happens when genes that manage cell activity mutate and create abnormal cells that divide and multiply, eventually disrupting how your body works. Medical researchers estimate 5% to 12% of all cancers are caused by inherited genetic mutation that you can’t control. Symptoms:- Some common early cancer symptoms include: Unexplainable weight loss. Chronic tiredness. Persistent pain. Fever that occurs mostly at night. Skin changes, particularly moles that change shape and size or new moles. Left untreated, cancer may cause additional symptoms, including: Bruising or bleeding more easily. Lumps or bumps under your skin that don’t go away. Difficulty breathing. Difficulty swallowing. Risk factors:- Smoking:-...