Eating wrong food is the reason, You should know which food is
good for your body type and your lifestyle. then you will be healthy.
The so called doctors blindly blame on cholesterol, obesity, blah.. blah...
but, the fact is they are wrong. they themselves are not are not aware
of the real reason.
I have seen people who are not obese also suffer heart attack, and
obese people are roaming around for decades, no attacks. How?
Every individual's body is different, activity is different and requirement
is different, working is different.
So, it is personalized diet for every individual for better health.