What is getting high? Does it require drugs? What are drugs? Must they be actual chemical substances ingested by a person? Or might things which stimulate the body to produce its own highs be called "drugs"?

These questions were on my mind as I read about the latest form of hysteria and counter-hysteria:

I-Dosing: How teenagers are getting 'digitally high' from music they download from internet

This is the world of 'i-Dosing', the new craze sweeping the internet in which teenagers used so-called 'digital drugs' to change their brains in the same way as real-life narcotics.

They believe the repetitive drone-like music will give them a 'high' that takes them out of reality, only legally available and downloadable on the Internet.

The craze has so far been popular among teenagers in the U.S. but given how easily available the videos are, it is just a matter of time before it catches on in Britain.

Those who come up with the 'doses' claim different tracks mimic different sensations you can feel by taking drugs such as Ecstasy or smoking cannabis.

The reactions have been partially sceptical but some songs have become wildly popular, receiving nearly half a million hits on YouTube.

Under one called 'Shroom', Berecz wrote: 'just listened to this... at the beginning I began to see some blinking light (while eyes closed), then the pitch went up and I began to feel that Im sinking into my chair...as the pitch went down I began to feel confident, and very relaxed, and I dont want to stand up from my chair and I dont want to say any words...'

Fascinatingly, some of the people in the narcotics enforcement bureaucracy are taking this very seriously, claiming that the music can lead to drugs, and that to keep kids "safe," parents should "take action."

But there has been such alarm in the U.S. that the Oklahoma Bureau of Narcotics and Dangerous Drugs has issued a warning to children not to do it.

'Kids are going to flock to these sites just to see what it is about and it can lead them to other places, spokesman Mark Woodward said.

He added that parental awareness is key to preventing future problems, since I-dosing could indicate a willingness to experiment with drugs.

'So that's why we want parents to be aware of what sites their kids are visiting and not just dismiss this as something harmless on the computer.

'If you want to reach these kids, save these kids and keep these kids safe, parents have to be aware. They've got to take action.'

No seriously.

Or how about the belief that pornography is a "drug" and actually generates "erototoxins" in the brain?

Get enough of the neurolaw crackpots involved, and you never know where this might lead.

But back to I-dosing. The experts say that if there is anything going on, it's most likely a placebo effect:

although they use a very modern method of spreading themselves, i-Dosing is actually a variation on a very old method of achieving an altered state.

In 1839 German physicist Heinrich Wilhelm Dove found that two tones played at slightly different frequencies in each ear makes the listener think they are hearing a quick beat.

He called the phenomenon 'binaural beats', and it has been the subject of research in the two centuries since.

Binaural beat therapy is used in clinical settings to research hearing and sleep cycles, to induce various brain wave states, and treat anxiety.

Dr Helane Wahbeh, a Naturopathic Physician and Clinician Researcher at the Oregon Health and Science University, said: 'Binaural beats happen when opposite ears receive two different sound waves.

'And normally, the difference in sound between each ear help people get directional information about the source of the sound.

'But when you listen to these sounds with stereo headphones, the listener senses the difference between the two frequencies as another beat that sounds like it's coming from the inside of the head.'

But Dr Wahbeh denied there was any possibility that someone could experience similar effects to cocaine or ecstasy.

She said: 'We did a small controlled study with four people, and we did not see any brain wave activity shifting to match the binaural beat that people were listening to.'

However, other researchers say the 'high' listeners claim to feel may actually be a placebo effect determined by the individual's desire to feet it.

But I also think that some of these kids may be putting everyone on, and I am reminded of the Bananadine ("Mellow Yellow") hysteria of the 1960s. There is absolutely nothing in banana peels which will get a person high, but enough people started doing it and claiming that they were high, that it was taken very seriously -- to the point where there was a government investigation:

The wire services, and after them the whole country, fell for it hook, line, and roach clip. "Smokeouts" were held at Berkeley. The following Easter Sunday, the New York Times reported, "beatniks and students chanted 'banana-banana' at a 'be-in' in Central Park" and paraded around carrying a two-foot wooden banana. The Food and Drug Administration announced it was investigating "the possible hallucinogenic effects of banana peels."

After all, we have learned a lot since 1967.