Because the bombers had bombed their before and the London people did not invent blackouts then.
Anxiety can cause lots of detrimental psychological, and physiological effects in the body. I suppose in extreme cases it could cause blackouts. Typically anxiety is a trigger for other behaviors known to cause blackouts, namely substance abuse.
The blackouts themselves may not disqualify you, but the cause of the blackouts potentially could. It depends on what causes/caused them, exactly.
Alchohol can cause blackouts and dizzyness:)
The mosquito.
No
Yes. It can also kill you.
Tornadoes cause blackouts by bringing down power lines, either by knocking trees into them or by directly knocking over or even blowing away utility poles.
Besides the obvious injuries and deaths, most deaths were the result of infection, dysentery, diarrhoea, secondary infections, pneumonia, and TB.
If a solar flare is large enough, it can cause a geo-magnetic storm near the Earth's polar regions. This can, and has, led to electrical grid systems being overwhelmed to the point where blackouts occur.
I am suffering wit it I want an answer Alcohol?
Yes alcohol can cause blackouts,it is more common in heavy or binge drinkers but can even occur in moderate drinkers.
probably not number one but a huge cause of many deaths