Allan is trying to significantly reduce his risk of another heart attack. which risk factors for heart disease are non-modifiable?

Allan already had a heart attack and can try to prevent another one by changing the diet, exercising, or even quit smoking, but there are non-modifiable risks such as age, sex and generic heritage, so If Allan is over 40 years old, male or comes from a family with heart diseases,  Allan needs to be extra careful because those factors cannot be changed no matter how the way of life is changed.