Despite the importance of sleep, its purpose is a mystery.
The brain waves during REM sleep are the same as when awake, and it's the stage when you have dreams.
"I fell asleep?" "Totally." "Really?" "You were very restless, did you have a scary dream?"
Sleep deprivation increases risk of heart attacks.
It looks like I must have dozed off.
Moderate exercise in the evening helps induce sleep.
If you get enough rest every night, you'll feel much better.
Sleep is the best medicine for a cold.
She had a headache from lack of sleep.
Don't disturb her while she is sleeping.
I would like to draw your attention to the fact that Kanjisho uses multiple sources of data provided by third parties.
The search results are provided by the wonderful Jisho API which itself uses various data sources which you can find on the jisho's website. The data concerning the kanji strokes are provided by the KanjiVG project, under the CC BY 3.0 FR license. I also use Tatoeba to provide example sentences and Kuroshiro to obtain the furiganas and romajis versions of the sentences.
If you find any vices, errors or malfunctions, please let me know so that I can correct them.