block

Parents told the BBC they paid between £180 and £975 for blocks of one-to-one coaching sessions and that often just one or two were delivered - including a free taster.

The energy that is being harvested as part of this research is being generated by squeezing amino acid molecules, the building blocks of proteins that exist in the human body.

That figure was what provoked Boasberg to suspend the Arkansas program and block a similar effort in Kentucky before it could even start.

But last December, the council made a stunning U-turn and blocked the latest conversion proposal.

One of the most effective ways of doing this is to develop antibodies that bind to the protein and block it from being nitrated in the first place.