My answer would be to make sure to include the F.I.T.T principle (Frequency, Intensity, Time, and Type). I am not completely sure if it is correct so correct me if I am incorrect. 
        
                    
             
        
        
        
Answer: What are the risk factors for cardiovascular disease?
About half of all Americans (47%) have at least 1 of 3 key risk factors for heart disease: high blood pressure, high cholesterol, and smoking. Some risk factors for heart disease cannot be controlled, such as your age or family history.
Signs and symptoms can include:
Chest pain, chest tightness, chest pressure and chest discomfort (angina)
Shortness of breath.
Pain, numbness, weakness or coldness in your legs or arms if the blood vessels in those parts of your body are narrowed.
Pain in the neck, jaw, throat, upper abdomen or back.
What treatment is used for cardiovascular disease?
Since the 1970s, aspirin has also been used to prevent and manage heart disease and stroke. Beta-blockers are one of the most widely prescribed class of drugs to treat hypertension (high blood pressure). They are a mainstay treatment for congestive heart failure.
Explanation:
NOT MY WORDS! BUT I HOPE THIS HELPS!
 
        
                    
             
        
        
        
These are signs of a chromosomal abnormality. In this specific case, Down syndrome. 
        
                    
             
        
        
        
HIV and AIDS :-
HIV infection is difficult to cure even by multiple treatment with multiple medications because this is a kind of highly communicable virus and it decreases the resistance of our body everytime . Up to date there is no systematic and effective treatment for this . Slightly it affects the whole system of our body and does not get easily treated with any special medications . 
 
        
                    
             
        
        
        
Answer:
Refuse to open the door for a stranger
Explanation: