Would you volunteer for medical experiments?

The question that I'm answering is, would you volunteer for medical experiments?

Now, personally, I have come from a health professional background and have also been involved in medical experiments as the practitioner. So I've seen different types of experiments. And so there's one experiment that I was part of where I helped out people with knee arthritis with an exercise regime, and that was the medical experiment. So personally, if it was a medical experiment that didn't involve anything invasive, and what do I mean by invasive, it's if I didn't have to take any medication or there's no injections or things like that, and it's simply an exercise program, I would definitely volunteer for something like that. But if I had to take a drug or if I had to take a lot of blood tests and things get a bit more invasive, then I definitely would not volunteer for that type of medical experiment. Now, where I'm at the moment is I probably will not in an overall sense volunteer for any medical experiment.