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confidence in a certain event or outcome occurring; a subjective judgment by a decision maker. The sure thing, the guaranteed happening, the certain winner.

certainty equivalent
the estimated value of a doubtful happening if it happened; used to help decision making in risky ventures.
certainty required
refers to the making of a diagnosis. The criterion on which a decision can be made about how far to go in the investigation of a case is the degree of certainty required.

Patient discussion about certainty

Q. Can certain fruits/veggies make Ritalin less effective? I've heard this about oranges and lemons - is it true? How about other produce? How much does it weaken Ritalin? Will taking a higher dose resolve the problem? (I currently take 10mg morning and 10mg afternoon)

A. As far as I know, oranges and lemons don't affect Ritalin. However, taking the Ritalin with food may increase the amount of drug that actually get into your body, but it depends on the specific formulation (e.g. Concerta isn't affected by food). One that takes Ritalin should avoid alcoholic drinks, since it may cause decrease activity of the brain, and also should avoid herbs of several kinds (yohimbine and ephedra).

THIS IS ONLY A GENERAL ADVICE - I haven't seen you or checked you, so if you have any concerns than you should consult a doctor.

Q. Is there a relation between certain types of allergies and graves? I suffer from graves and have been suffering from allergies since I was real young. Are these two related somehow?? anyone else suffers from both?

A. Not that I know about. However, allergy is quite common, and Graves' disease is also not a rare disease, so it's not impossible for the two to appear in the same person.

Take care,

Q. Are there are certain types of people that have a stronger tendency to become alcoholics?

A. the important part is to remember that you dont really know if you have a tendency to become an alcoholic until you are one, so the safe bet is to just stay away from it and no tell yourself that "it could never happen to you".

More discussions about certainty
References in periodicals archive ?
We know with absolute certainty, without a shred of doubt, that this was a Hezbollah operation," Netanyahu said on Fox News on Sunday, as cited by The Hill.
One fact I can say with absolute certainty is simply this: if any member of the armed forces and indeed any associated branch of the armed forces was to raise one iota of criticism against the Royal family, be assured of one thing, their promotion chances would be absolutely zero.
Farid Niyazov said there was no absolute certainty concerning uninterrupted fuel supplies before.
One thing I think is an absolute certainty for next year is that the performance levels of athletes will once again be significantly raised," says Craven.
Det Insp Paul Joyce, who is leading the investigation, said: "We can't say with absolute certainty quite when she suffered the injuries, but there's a possibility she was attacked up to 12 hours before she was found.
We cannot stress enough the need for absolute certainty before confirming the nature of this incident.
However, the possible truth of such hypotheses implies only that I do not know with absolute certainty that there is such a world, and most of those same philosophers hold that knowledge does not require absolute certainty.
John Haylock wrote Absolute Certainty after a number of years helping Strategem (now PriceWaterhouseCoopers) in New Plymouth achieve breakthrough performances--and all through listening to what clients really want from their accountants: "great work delivered on time with no surprises".
WHENEVER I talk to people who regard religion as something completely absurd, what puzzles me often is not their views so much as the absolute certainty of their conviction which does not allow for any doubt in the believer.
Long experience and absolute certainty are requisite.
Although we acknowledge that future progress depends on many disparate groups, we can say with absolute certainty that the interests of the Baloch people and the cause of the missing will suffer a terrible blow if harm is done to John.
I can state this will absolute certainty because I have experienced it.