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Physiology & Medicine / Re: What are the harmful effects of Vaping?

« on: 10/10/2021 22:45:33 »

Carbon monoxide is also generated in combustion, and that is harmful to one's health in many ways.
I like to comment to vapers that it is an accepted fact that broccoli is a healthy food, but we don't set it on fire and inhale the smoke for its health benefits. Inhalation of soot has no benefits for our health, but perhaps the low levels of oxygen in the smoke will cause the user to feel calm and relaxed.

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Physiology & Medicine / Re: Why do my joints making popping and cracking sounds?

« on: 27/02/2018 01:48:29 »

I am 63 years old and have a popping in my hip joint, where the femur attaches. X-ray shows this noise is made by an irregular bearing surface caused by osteo-arthritis. Probably not the same problem you're experiencing but it adds to the body of answers.

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Physiology & Medicine / Re: Can you grow stem cells from the hair of someone?

« on: 04/10/2017 21:15:57 »

Not from the hair; it is mostly protein. But if there are skin cells hanging onto the bulb of the hair, as it would be if plucked from the head instead of cut from the scalp using scissors, then these could be used.