Watch the time!
1, the quilt should be light, not too warm.
2. Wash the lower half or waist with cold water before going to bed.
3. Don't think that you can fall asleep slowly by going to bed.
4. Go to bed late and get up early.
5, exercise more, so that physical strength has a moderate catharsis.
6. Don't read obscene books, watch pornographic movies, and don't speak English.
7. Eat less at dinner and try not to eat any irritating food, such as garlic, wine, peppers, coffee and strong tea. The so-called' full warmth and lust', if you eat too much at night, your lust will be stronger.