Soul of China, China-Who can tell me the real cause of Bruce Lee's death?

The hospital said he died of brain edema.

But Bruce Lee took a lot of medicine before his death, so there are many speculations about his death.

There is a saying that Bruce Lee has a brain tumor.

On the day of the incident, he took medicine due to headache and eventually died of drug allergy.

I also watched an American documentary recently, according to

Bruce Lee was so demanding of his body and muscles that he took drugs and became dependent on them.

Finally, he died of an overdose.

But there is no known evidence that Bruce Lee died of excessive martial arts.