Intermediate Word:  diveritculosis (a) inability to concentrate  (b) excessive growth of arterioles  (c) spread of runnels rather than concentration into creeks  (d) pouching of the colon
Difficult Word:
  mangonel -  (a) topical fruitt  (b) medieval catapult  (c) flatiron  (d) farrier's hammer

Microscope Hope for Huntington's Treatment  - BBC  A compound that interferes with the progress of Huntington's disease has been discovered by US researchers. Clumping of proteins is thought to cause the disease, but a compound called B2 was found to promote large clumps which could be protective. There are drugs that can help with the symptoms - but none that can stop the onset or the course of the disease. The researchers hope their new compound might lead to a drug that can stop the deadly sequence of cellular events that Huntington's unleashes. The condition is caused by misfolded proteins - called huntingtin proteins - that clump together.   
Joggers Solo running 'few brain benefits'  - BBC  Running is known to increase levels of stress hormone corticosterone, which can reduce the creation of new brain cells - a process known as neurogenesis. But the activity has also been found to increase spatial awareness and to boost communication between neurons. Running was found to increase neuron generation only when rats were housed in groups. Running caused similar elevations of the stress hormone corticosterone - which can impair neuron generation - in both groups. But only animals that ran alone were vulnerable to its negative influence.  

The British Rail flying saucer plan that failed to take off  - BBC  Recently uncovered plans show bosses filed for a patent in 1970 for a spacecraft powered by "controlled thermonuclear fusion reaction". With a passenger compartment upstairs, it would have been cheap to run and super-fast, according to its inventor. The proposals were recently found on the European Patent Office website. The original patent application said the reaction would be "ignited by one or more pulsed laser beams". The application was made on behalf of the British Railways Board and the patent was granted in March 1973. But, it seems, the patent later lapsed because of non-payment of renewal fees  

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