Staying up late in the night is a way to torture your body with high blood pressure and cholesterol. These are the risks associated with the heart. If you do not want to worsen the situation get sufficient sleep.
A peaceful sleep in the night relieves physical and mental stress that is caused during the process of regular activities. It relaxes the body and mind. With insufficient sleep you are risking your health with heart strokes and other diseases.
stay up late 深夜不睡，迟睡； 熬夜；
She could always sweet-talk Pamela into letting her stay up late.
I used to stay up late with my mom and watch movies.
I am going to stay up late to finish my paper.