Good cholesterol also known as HDL can be raised by simple lifestyle modifications like:1. Quitting smoking since smoking lowers good cholesterol.2. Limiting alcohol3. Regular exercise which can increase good cholesterol by about 5 percent in less than two months4. Weight reduction if obese since weight loss of two pounds in obese can raise 0.35 mg/dL HDL.5. Healthy diet like eating more mono and polyunsaturated foods like olive, peanut, canola oils and avoiding saturated fats like margarines etc.