According to World Health Organization statistics, 12 million people are prematurely killed by cardiovascular and cerebrovascular diseases every year. The death rate of cardiovascular and cerebrovascular diseases is the highest among various diseases, and "stroke" is Cardiovascular and cerebrovascular diseases. If self-medicated with "reinforcing the mind for 3 minutes", it can save 3 million people worldwide from death each year and 600,000 people from China in a year, because "strokes" often occur in At night, the most dangerous moment is the "moment" of waking up. But there are tricks to prevent this "moment", that is, when you wake up, you can raise your mind for 3 minutes. what diseases is article mainly talks about? ['Stroke.', 'Hypertension.', 'Heart disease.', 'Cerebrovascular disease.']