Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) High Blood Cholesterol ?
    ### Response:
    You cannot control - heredity. High blood cholesterol can run in families.  - age. As we get older, our cholesterol levels rise.  - sex. Before menopause, women tend to have lower total cholesterol levels than men of the same age. After menopause, women's LDL (bad) cholesterol levels tend to increase.
    